I installed Zeppelin when the first version was released and the carrier logos never worked for my unsupported carrier. Two days ago, I upgraded it to 1.0 via Cydia and my custom carrier logos started working! Facebook is stuck in the login screen but I'm still receiving notifications for it, and in Tweetbot I can load tweets but can't compose. Dropbox works when I reinstalled Zeppelin 1.0. I read here that previous versions cause app crashes. Another possible issue: I have Siriport working now. I'm not sure whether it was because I now have a fast connection, or my [uninterrupted download] reinstall of it.