So if people get used to using GV on iPhone, Blackberry and Palm, it would make switching to GV on Android trivial. There would almost no transition costs.

I get tired of my iPhone (or more likely pissed off at Apple for something) then I could just take my GV #, make some settings changes, then buy an Android phone and be off.

Easier switching is better for us, maybe not so much for Apple or AT&T.