Apple released iLife '08 today, but there is one big gotcha that some may have overlooked: iMovie '08 has obsoleted many, many Macs. The iLife '08 System Requirements state that "iMovie requires a Mac with an Intel processor, a Power Mac G5 (dual 2.0GHz or faster), or an iMac G5 (1.9GHz or faster)." This means that no G4 Macs at all are supported, and not even dual G5 1.8 Power Macs make the cut. This is rather lame, considering that a dual G5 1.8 is much, much faster on average than a 1.9 GHz G5 iMac.
Furthermore, Apple has restricted AVCHD support from some camcorders in Movie '08 to only Intel Macs.
With this new version of iLife, Apple has announced the death of the G4. May ye rest in peace.