Motorola

Is it possible for the V3 to be upgraded (software) to run on Push to Talk? If so, is there a plan to do this within Cingular? Being that the V3 is their best selling phone, I would think that they would like to grab a large part of that market on a reoccurring ptt fee rather then have them upgrade (downgrade) to a different phone. My guess is that they would get a much smaller piece of the market by forcing them to change phones.