Version 3 of iBiz is a bit different from version 2, but I thoroughly enjoy the changes, especially the new Billing status tab. I did run into one glitch though, as did some others who have complained of frequent crashing. The new auto-sync function in iBiz 3.1.9 (syncs calendar event data with iCal) should not be used concurrently with automatic synchronization in iSync. If iSync happens to be synchronizing when iBiz auto-sync kicks in, iBiz will promptly and unexpectedly quit. The simple solution is to not use the auto-sync setting in iBiz. You can still sync by selecting "Fast Sync" in iBiz... just be sure iSync isn't running at the same time. If you set iSync to show its Menu Bar Item, it is easy to tell when iSync is busy and thus avoid the conflict with iBiz.

Cheers,
~b