Online orders of the iPad 2 will open at Apple around 1AM Pacific time on Friday, or about 4AM Eastern, according to the company. The timing mirrors that announced by AT&T, one of Apple's two US carrier partners. Buyers will otherwise have to line up for 5PM (local time) launches at retail chains, including not just Apple and AT&T but Best Buy, Target, Verizon, Walmart and some smaller resellers.