For those running Macs, you might want to check Software Update.  I noticed that Apple released a nice iPhoto update tonight, downloaded it and installed it.  However, in classic Apple tradition, there’s little to no information on this update.  Clicking the KB Link (noted in the Software Update dialog box) just says you need to update to iPhoto 8.0.4, with a link back to the KB Page. I do love circular references… However, it does make reference to a problem with sudden app quitting in version 8.0.3.

However, this should make the app more stable, so if you use iPhoto, then you definitely need to download and install this.