Google promised us that it would offer textbooks through Google Play Books this month, and it's living up to its word. American students can now buy educational titles or rent them for six months, with prices frequently undercutting paper editions. Appropriately, Google has updated its Google Play Books app for iOS to support rentals like its Android and web counterparts. The launch is a painful reminder that the fall semester is just around the corner, but college-goers who want to be prepared can check out th
