I dropped my iPhone 3G on the drive way and it cracked the screen something fierce. Over the past few days, the portion of the screen that is "blanked out" (turned a gray color) continues to increase. At this rate, it'll be completely gone within the month. My quandary to you guys...do I go ahead and get a 3GS (I'm eligible for an upgrade) or do I try and though it out with what I have and hope that a fourth generation iPhone will be coming this summer? p.s. - I have a long trip to Canada coming up and I need something to keep me company... What do?