Market analyst Gene Munster surveyed just under 250 line-waiters at the iPad 2 launch last Friday and one of the most interesting findings was that 70% of the iPads being sold were to consumers who did not own the original iPad. Furthermore Munster estimated that Apple would have sold around 400,000 to 500,000 iPad 2’s, close to what analysts were predicting prior to the launch and well above the original’s 300,000-unit figure.

Munster said of the results “We believe this shows Apple is expanding its base of iPad users, which is critical to maintaining its early lead in the growing tablet market,” and this was backed up with statistics that whilst the original iPad had a predominantly Mac audience, iPad 2 owners were split 49% to PC and 51% Mac users. In addition Kindle users opting for an iPad 2 were at 24% compared to 13% for the original.

Munster also got some statistics on the break up of which model people were purchasing with more WiFi + 3G models chosen and the 32GB variant the most popular size chosen at 41% (up from 32%), although Munster notes that this increase could be in part due to the 16GB variety selling out faster. Finally another analyst, Chris Whitmore from Deutsche Bank, decided to call up around 100 stores (50 Apple Retail, 20 Best Buy and Walmart plus Verizon and AT&T stores) and found zero stock in all the stores which he called “shocking”.

[Via Cult of Mac]