Alex, researching her prospects for dumping Entourage, says:

Note to developers: giving your software generic names like “Mail” and “Address Book” makes it very very hard for nice people like me to find out about your software using the Google method.

Damn right. But until Apple’s app-naming team gets its act together, here’s a trick: search on “mail.app” and “address book.app”. A fair number of folks — MacFixIt among them — use those terms exactly to avoid the kind of confusion Alex is pointing to.