Acer is already optimistic enough about its Iconia Tab launches that it's increasing production, part suppliers said late Monday. Although it was conservative when it first made orders in March, Acer has supposedly bumped the order dramatically to between 500,000 and 800,000 tablets. About 400,000 to 600,000 of those would be the 10-inch A500 models where the rest would be seven-inch designs.