It's been known for some time that Twitter would be moving away from basic authentication to OAuth for third-party apps; in fact, they'd already officially pushed back the drop-dead switchover date once to mid-August before finally pulling the plug this week. Be that as it may, it makes sense that a bunch of lesser-known, less-maintained apps would fall by the wayside once the old security mechanism got shut down -- but HTC's Peep? Really? Sure enough, we've been able to confirm on our own Desire that the Twitter app HTC bundles with its Sense UI for Android is no longer working this morning, giving users an "incorrect username or