It looks like the G2x saga isn't over quite yet; after first disappearing from store shelves due to quality concerns "high demand," the dual-core Android smartphone is getting a slight price hike from T-Mobile. As of May 27th, the out-of-stock Froyo handset decided it was worth an extra Grant (quite the presumptuous fellow, no?), dialing in with a new price of $249 after rebate. An internal screenshot describes the price hop as a reaction to inventory constraints. Th