Developers upset with Facebook's antiviral measures tell us enthusiasm for Facebook's platform is waning. Nonsense, says Steve Cohen, the head of platform engineering at Facebook rival Bebo. Earlier this year, Cohen built a platform for Bebo that was entirely compatible with apps built for Facebook. Cohen told Silicon Alley Insider that Bebo's big worry right now isn't that Facebook's redesign will kill developer enthusiam for the shared platform, but that a new Facebook platform will leave Bebo a step behind. Said Cohen: “Facebook really threw a monkey wrench in the whole compatibility thing. If we’re not compatible with Facebook, no one is going to develop for our platform.”

Who owns the most annoying applications on Facebook? It seems incredible that anyone would want to take credit for Vampires, Zombies, and Werewolves, three of the most useless and yet most used applications on Facebook. And yet Blake Commagere, their developer, and RockYou, the company which markets those apps, and is happy to take credit for them when raising venture capital, are getting ready to deploy lawyers to settle the question over their ownership, we hear. Adonomics, the Facebook-app measurement firm, somewhat questionably estimates the three applications' value at $6.5 million — but attributes their ownership to Commagere.

Facebook has removed the "Wall" from its redesigned profiles. Early screenshots of the redesign featured a separate tab for the popular feature, but the latest shots show the Wall, where other users can leave comments on a profile, with the user's News Feed — now just called the "Feed." Users will be able to filter the Feed to see only Wall posts. Facebook-app developers, already exasperated by the redesign process, tell us they don't like the idea. Says one: "Mixing in 'X wrote on Y's FunWall" along with more personal messages from friends may deteriorate the quality of the new Wall/Feed feature as a whole." Put another way? Widgetmakers don't like losing their privileged position in the News Feed. Full screenshot of the new look, below.

Linking up social websites, as proponents of "data portability" would have us do, can be hazardous to your privacy. And Paris Hilton's, and Lindsay Lohan's. But even the widgets on a single social network can leave us exposed. SuperPoke, a popular application made by Slide, will show you who's thrown a sheep at anyone, as long as you have their Facebook ID — the unique numeric identifier which shows up in the URL of their Facebook profile. Mark Zuckerberg's SuperPoke feed is here; substitute the number of another Facebook user for Zuckerberg's "4", and you can see every last sheep he or she has been involved with.

Welcome to the Silicon Valley hype cycle: One year, and you're over. That seems to be the consensus on Facebook's vaunted platform, whose one-year anniversary went largely unremarked. The company itself didn't blog about it until today, and sources tell us an open-bar party Facebook held in Palo Alto was low-key to the point of despair. It can't have helped that Google was throwing a massive party in San Francisco the same day to close out its conference for developers. How different a scene from a year ago, when the F8 launch event of Facebook Platform won comparisons of the company to Microsoft and of founder Mark Zuckerberg to Bill Gates.

Earlier today, we reported that participation in Facebook's developer forum is down, most likely due to Facebook's new restrictions on Facebook-application spam. We praised these new rules, saying Facebook won't miss its lousiest apps. Now an executive from a major, well-funded widgetmaker tells us, "Your post misses the point." Before you reach for the "Block" button, hear him out:

New accounts and activity on Facebook's developer forums are down dramatically since January, reports Adonomics founder Jesse Farmer. And as the above chart indicates, Facebook's users no longer add third-party Facebook applications as much as they did at the beginning of the year. Along with increased competition from social network Hi5 and consolidation into larger widgetmaking companies, Farmer blames the slowdown on Facebook for "instituting increasingly demanding and arbitrary rules on platform developers, which they then enforced selectively and for their own benefit." We agree the slowdown is likely the result of the new rules, but we don't so much blame Facebook as praise Facebook for them.

When a Facebook user adds "skiing" to the interests on their profile, it's hard for an advertiser to tell exactly what the user means. A Google search for "Ski rentals in Wolf Creek, Colorado" is much more informative, by contrast. Advertisers know what kind of pitch to deliver, albeit in the form of an AdWords haiku. Inside Facebook's Justin Smith argues advertisers have an easier time targeting users of Facebook apps — for example, one who installs a skiing weather-map application, and looks up conditions in Wolf Creek. It's one reason he says that Facebook applications will prove easier to profit from than Facebook itself.

Why has Mark Zuckerberg courted disaster by offending the developers who helped make him worth $4 billion on paper? He has no one but himself to blame, says the CEO of a top Facebook widgetmaker. Facebook failed to control application spam last summer, he says, after it launched its platform. And so last night Facebook revised its rules to allow the applications with favorable user-feedback ratings to send more notifications and invitations. Apps with bad reviews will now have tighter restrictions. It's too little, too late, our source tells us.

For the past two days, only applications from Max Levchin's Slide have appeared in MySpace's featured application page. Smaller developers asked why, the Social Times reports, and found out it's because Slide pays. On the order of around $50,000 to $100,000 per week, these developers say. Facebook does not charge application makers to feature them, ranking apps instead on user activity and feedback. The Social Times notes that MySpace's Sponsored App program could keep small developers from gaining popularity on MySpace. Whatever it takes to keep Vampires and Zombies at bay, we say.

Makers of Facebook applications have seized control over the social network's latest redesign. So who are these mighty developers capable of bending the stubborn Mark Zuckerberg to their will? Among others, the makers of "You're a Hottie," which tops the "Recently Popular" list in Facebook's "Just For Fun" application category — the most popular on the site, according to this handy reminder from FlowingData. Here's CLZConcepts.com pitch for their popular app:

Updated mockups reveal that Facebook has added a new tab to its soon-to-be-released user profiles. It's a small but telling detail that illustrates how the obsessively controlling Mark Zuckerberg has ceded power to independent Facebook-app developers. In his original plans for Facebook's redesign, Zuckerberg planned to integrate the Wall — the place where public messages from other users are displayed on user profiles — with Facebook's News Feed, which is where Facebook serves ads between "stories" about other users' activities. This integration was a way for Facebook to finally serve ads in the Wall, a placewhere users spend a great deal of their time on the site.

TIM FAULKNER — As mentioned previously, Facebook is having problems dealing with its sudden burst of attention despite seemingly manageable volumes of use. iLike, a music sharing and recommendation application currently the most popular with 4300+ users, provides a snapshot of this issue as well as the possibilities; the 90+ reviews, mostly negative, point to some of the larger concerns facing these applications and Facebook.