Originally Posted by ChrisZA
Your iPhone crashing with large lists is probably related to memory. Use free memtool (only on jailbreak cydia I'm afraid) to clear up 20Mb of memory. It's a common issue in app dev; works for you, crashes for everyone else. Especially Jailbroken phones as these invariably have background apps added (sbs settings, intelliscreen, dialers, quicksms, WINTERBOARD!, etc)
I haven't had a problem with mine crashing; but my list is only about 1200 books. Anyway, there is a free memory app in the app store now, for those who don't want to jailbreak. It's pretty useful for other memory hogging programs (like logmein).