We interrupt your iPhone coverage to bring you this late-breaking news: As promised, today Palm announced a price drop for the AT&TPalm Centro . From July 11 to September 20, you can now get the Centro for $69.99 with a two-year contract and after a mail-in rebate. This $30 price drop is part of a back-to-school promotion for the AT&T and applies to all color models of the Palm smartphone, which includes the new electric blue, glacier white, and obsidian black. So there you have it. And now back to you regularly scheduled program.