Ignoring the iPad, I don’t understand how the TouchPad could be less successful than all the other tablets. Android can’t be the reason, that’s not how the tablets are presented. They are the Samsung tablet, the Motorola tablet, the Asus tablet, the HP tablet. It’s not even obvious that the Motorola and the Samsung tablet run the same OS, at least if you are a casual shopper, trying out tablets. To me, Android and webOS didn’t feel different enough to make one the clear winner, at least if you have limited time and are just playing around with it. The price certainly can’t be the reason, they all cost about the same.
Android tablets seem to at least be a little successful, why is the TouchPad not at all successful?