Plastic Logic, which is still gestating its entry in the new market for electronic reading devices, is disclosing a little bit more about its upcoming product, The New York Times reports. After announcing earlier this week that Barnes & Noble would manage its electronic book store, the company said Wednesday that AT&T’s 3G network will provide the mobile broadband connection for the device, which is due to go on sale at the beginning of next year. The Mountain View, Calif., company declined to disclose any more information about the pricing, or whether it will charge consumers monthly for that wireless connectivity. Amazon.com’s Kindle accesses content through Sprint Nextel’s wireless network, although users are not charged for the service and many probably do not even know their Kindle uses Sprint to download books and access the Web. The Plastic Logic Reader, the size of a regular piece of paper, will be slightly larger than the Kindle DX and sport a touch-screen. Plastic Logic says the device will be targeted at business users, which typically suggests a higher price and the need to lure more affluent customers.