I'm running Fly Delta version 1.5.1 on Android version 2.3.3 on a new LG G2x device. I receive the usual notification to check in at T-24, but when I attempt to do so, the app informs me that I won't be eligible to check in until T-24 (which, of course, has already passed). I receive the same message many hours later when well inside the eligibility window.
I had the same problem with my previous (much older) Android device.
Any thoughts/suggestions?