With the Expo just days away, a few things to remember are some recent (and not so recent) Trademarks that have been filed by Apple.
Last year, Apple released "Keynote", a presentation application, at MacWorld San Francisco 2003. "Keynote" had been trademarked by Apple 2 months prior to its release.
Junkyard, Xgrid, and iPhone were trademarked in 2002... while iWrite and Garage Band are more recent acquisitions. One unconfirmed rumor has claimed that Garage Band may be the name of an upcoming Apple consumer application -- but this information can not be verified.