I started this journey with a 12" PowerBook running Tiger and over the course of 7 years, I've migrated through 5-6 Macs (via FireWire/Migration Assistant) to a 15" i7 MBP. Just this morning, while looking for the generic scanner utility, I found something called ABBYY ScanMan X and when I opened it, it said "PowerPC applications are no longer supported". Maybe I put too much faith in OS X, but I figured it would have deleted those obsolete apps in the migration process. This got me wondering exactly how much more crap is on my computer? Is there a tool that will hunt down all of these obsolete apps?