When Google said that the unofficial Froyo build was not yet ready, we assumed they were trying to prevent users from reporting issues on a file that got distributed accidentally. Even while some Nexus One users are using Android 2.2 just fine, there’s a good handful reporting issues with the build.
One such issue seems to be the disappearance of certain apps in the Android Market. Users installing copy-protected apps may not see those show up in the market if they’re running Android 2.2, even if you’ve paid for it. The cause of this is because the market doesn’t know what Android 2.2 is yet, so when your phone tells the market that it’s running Froyo (and a certain application requires Forward Locking to prevent piracy), it goes “eh?”.
The issue should clear itself up when Google rolls out the “official” 2.2 upgrade, but until then, you’re just going to have to do without some of those apps for a little while.
[via Android & Me]