Up until a few years ago, I had a 12" PowerBook G4 that I absolutely loved. It was truly portable (although the screen was a bit on the small side for me), relatively fast, and lightweight. Many of my consulting clients have asked if Apple had plans to replace the 12" PowerBook with a MacBook or MacBook Pro in the same form factor, but I've pointed them towards the 13" MacBook or MacBook Air instead.
There's still a vocal group of former PowerBook G4 users who would like to see Apple come out with a new MacBook Pro -- complete with SuperDrive, Intel Core 2 Duo processor, and Multi-Touch trackpad -- in that tiny 12" PowerBook case. If you're in their camp, visit and participate in the MBP12.com forum and add your voice to the people clamoring for a small, powerful MacBook Pro.
Do you think a 12" MacBook Pro would be a winner in the market? Take our poll!