I think Apple has some editing of their algorithm to do when it comes to searching the US iTunes App store. I tried, although I knew it was futile, to search for iBooks, one of the new Applications for the iPad. So these are the results I received.
This one is from the desktop version of iTunes.
And this one is from the Mobile App Store for iPhone OS.
I don’t know if they are trying to suggest something or if they just managed to miss a little detail regarding the iPad. It made me chuckle.