That's like asking Microsoft to support Linux.
Its gonna happen, trust me
Just like how ISP's, home phones service, etc..
The technology will become cheaper and all things will be made equal thus leveling the playing field. Google will be the first to develop a single handset that works on both GSM/CDMA (across all respective bands) that supports any type of HSPA+ architecture. Also the number of carriers will reduce as well. It will only leave the consumer the decision to make on who they want to sign up for. Plus, I see contracts going away and the month-to-month unlimited use plans will take over. Again, similar to internet/tv/home phone.