There are some interesting design ideas, but if Apple does produce a phone, I wonder how far they will push the basic and universal interface of the phone. Most cell phones dial numbers just fine. It’s the interoperability where most phones choke.
The other area that could be drastically improved ( by anybody, not just Apple) is by moving away from the existing push by networks to sell a user crappy ringtones, wallpapers and accessories at a premium.
I’m still not sold that Apple will announce a phone at Macworld.