Palm and AT&T have a new promotion for AT&T Centro smartphones, including the new electric blue Centro announced just a few days ago. The Palm Centro on AT&T is now available for as low as $69.99 with a 2-year agreement after a mail-in rebate.

The Palm Centro on AT&T is available in glacier white, obsidian black and the new electric blue. The promotion runs from July 11th through September 20th.

Adding the spectrum of available colors, Palm today announced the introduction of Glacier Blue for AT&T Wireless. The new color will be available starting Friday at www.att.com and www.palm.com/centro.

Palm also mentioned a "back to school" program that will make these Centro smartphones more affordable than ever. We should have more details on Friday.

via The Palm Blog

Palm today announced the general availability of the Centro in an unlocked version for US customers. The unlocked Palm Centro is white with grey accents and allows US customers to use the device on any GSM carrier in the US (AT&T, T-Mobile). The unlocked Centro retails for $299.

Also available starting tomorrow is Google Maps for mobile with My Location on Centro, giving customers faster access to local maps and driving directions. Google Maps for mobile with My Location will be available free of charge for Palm Centro smartphones at http://www.google.com/gmm. Please check the site for details on the download process and carrier availability.