We just released a small fix to Tickets on the app store, which fixes a small locking issue that seemed to occur under iOS 5. So, if you're using Tickets and on the latest OS, then we strongly recommend snagging the update.
In other update news, work is apace on PlaceWhisper 2.1. There's a couple of iOS5 issues, but they're purely cosmetic and don't affect functionality, so rather than rush out an update just for that, we hope to submit the 2.1 update to the app store for approval this week which includes not just fixes for iOS5, but a whole bunch of things people have asked us for since 2.0 came out. Watch this space for more info soon!