Has anyone had difficulty getting what has otherwise been a solid iPhone app working on the iPad? I was under the impression that iPhone apps would run without problems on the iPad. We are are experiencing crashes (not intermittent - same place, at same time) that we've never gotten on the iPhone or iPod Touch. I have become suspicious that the crashes are memory-management related, but even if so, why only on the iPad?

2010-05-17 10:19:06.474 ASSIST[82:207] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UISectionRowData 0x6041480> valueForUndefinedKey:]: this class is not key value coding-compliant for the key deliveryDate.'
2010-05-17 10:19:06.481 ASSIST[82:207] Stack: (
852041337,
861292157,
852040861,
850755255,
850750995,
850758945,
81279,
123007,
126693,
149141,
851599725,
827486573,
827486477,
827486431,
827485745,
827487359,
827454123,
851903137,
851590065,
851588321,
819339483,
819339655,
827151561,
827144691,
9461,
9324
)
terminate called after throwing an instance of 'NSException'

Program received signal: “SIGABRT”.