Hi Matthew,
We apologize for this inconvenience.
It seems that the What's On? 2.5.6 update crashes on devices that
aren't running iOS4.2. We are working on a fix for this,. The App
Store submission process is rather lengthy, and it can take some time.
Unfortunately, until an update is available the best way to fix this
is to update your device. iOS 4.2 is very stable and offers many
enhancements, bug fixes and speed boosts over older versions.
Again, we apologize for this, and we want to assure you that a fix is
coming.
I will notify you when an update is available.
Thanks,
Sid