Windows Phone Thoughts: AT&T To Move To A Single Mobile Platform?

"AT&T hopes to standardize on a single operating system for AT&T-branded smartphones as part of a "dramatic consolidation" of its mobile platforms over the next few years, a company executive said Thursday."

This comment was made at the Symbian Partner Event in San Francisco this week, which has led many to speculate that AT&T will shun all mobile platforms save one, Symbian. It really makes no sense. First of all, they have the hottest phone going in the iPhone, and many businesses won't consider doing business with anyone that doesn't support the Blackberry. Personally, I wish the carriers would quit spending so much time on their own software for phones. I've yet to own any phone with carrier software that didn't have problems. I don't need to have their logo thrust in my face every time I go to use my phone. Do you think it makes any sense for them to move to a single platform, given the platforms right now seem to fit the needs of different markets? Is there a single platform that can do everything for all consumers?