PalmInfoCenter has put up a nice photo gallery of the Centro in Olive Green color here. If you are wondering how the new color appear in real life, click on the link to browse the whole photo gallery.The Olive green and Vibrant rose Centro smartphones is available now at select retail locations, and beginning Nov. 2 in Sprint Stores. The new colors will be available for a special promotional price — as low as $79.99 with a two-year subscriber agreement and $100 mail-in rebate.