I'm not sure about the 3D thing. I guess it'll come naturally in time, and it'll help open up mobile phone games to the massmarket, but its almost like they are being forced there by manufacturers/publishers, before the handsets are ready.
Its like mobile phone gaming is being forced to grow up too quickly.
You'll have whizz bang 3D graphics, stereo sound, bluetooth multiplayer. But you'll still have a crappy 4 way controller with action buttons underneath, that runs out of battery in an hour.
I'm also not convinced about the types of games being put across. You need either very short, instant on games (like tetris, or snake) - or very slow, thought out games (like Advance wars). They fit the mobile lifestyle well - you can play them in the downtime between doing other things.
Making an hour to play a few levels of ghost recon means destination gaming - an apppointment with your phone. for me, thats likely to be a GBASP, or upcoming DS/PSP. For the massmarket who don't have a portable console (the trojan horse model), maybe they won't even bother apart from the 15 minutes on the bus