I currently have a Sidekick 2008 on T-Mobile. I'm due for an upgrade soon, which I am excited for since my sidekick has been malfunctioning for the past 6 months. I was considering getting a Blackberry Curve 8900 or some other sort of blackberry, but I've been reading that the iPhone is coming to T-Mobile this summer (2010) - is this true? If so, should I get a blackberry or an iPhone?