PC maker Acer will begin selling its seven-inch tablet and a previously unmentioned 10-inch model in the fall of 2010, sources in the notebook industry claimed today. As suspected in the past, the slates will run on ARM chips and use Android, and the company is in negotiations with cellular providers to market and possibly subsidize the prices. The twosome is said by DigiTimes to have Android 2.2 and support Adobe Flash, along with other media playback features.