Everyone seemed skeptical at first, but over a million sales later and it seems pretty clear everybody is getting more and more interested in trying out Apple’s iPad. We bounced some ideas around the office to come up with six great apps we think every iPad user’s going to want to have installed on their new toy. 1. Marvel Comics Free, cost of comics varies This beautiful app seems set to change the way we consume comic books. It’s almost as if the iPad is built for them — now Marvel intends making new comic titles available digitally first. New titles are sold through an online store that works…