The move comes on top of rumors that Apple will include VMWare-style virtualization capabilities in the next version of OS X, which could enable the Mac OS to run Windows apps without requiring a third-party emulator or a reboot.
For answers to questions about upgrading to Windows XP without buying a new computer, Microsoft's MP3 audio quality and running PC programs on an emulator, check out my Mossberg's Mailbox column in Tech Center.