Apple has yet to confirm an official launch for the iPad 2 in Taiwan, creating pent-up demand as potential buyers wait for it and other tablets come to market so they can make comparisons, a report in DigiTimes says. The rumor mill has the launch set for May 20th, while other sources offer more conservative estimates of one to two weeks. Tablet makers, including Apple, continue to have difficulty balancing supply and demand worldwide, with both Asustek and Acer (among others) reporting shortages.