Right on schedule, Hewlett-Packard’s first webOS-powered tablet is now available for pre-order. The HP TouchPad becomes available on July 1st but those who want to ensure they get their supersized webOS fix as soon as possible can pre-order the device through a number of different retailers. Best Buy and Amazon, among others, have the TouchPad available for pre-order at $499 for the 16GB model and $599 for the 32GB model, as expected. BGR took a hands-on look at the TouchPad when it was first unveiled back in February, and we were impressed. WebOS translates very well to a large form device, and the interoperability with HP’s upcoming Pre 3 smartphone is fantastic, though we still have no word on when HP might launch the Pre 3.