When we first caught wind of the Wikipad at CES, we picked up the distinct scent of vaporware. In the months since, we’ve seen the ten-inch tablet with detachable controls get games via Gaikai and fromPlayStation Mobile, plus an impressive list of specs. And now we know it’ll cost $500 and will officially be available on October 31st exclusively at GameStop. Of course, you don’t have to wait until then to call dibs on your Halloween treat, as those willing to plunk down five bills early can reserve one via pre-order starting tomorrow. That’s quite a chunk of change, especially considering the cost of othergamified Android tablets, but it does have an impressive set of internals, and it’s tough to put a price on having Jelly Bean out of the box, right?