The first tablet with an attachable gamepad controller, the Wikipad, will launch on October 31 at GameStop stores and through the retailer's website, the company announced today. The tablet will sell for $500, with a preorder program beginning tomorrow, September 7. How spooky, the Wikipad launches on Halloween.

　　Those who preorder a Wikipad will receive extras, including one issue of the GameStop-owned Game Informer digital magazine, and "full-length titles." These games were not announced, but GameStop said it will reveal them in the near future.

　　The Wikipad will support games downloadable through PlayStation Mobile, Nvidia's Tegra Zone, Google Play, and other forthcoming platforms. The device features a 10.1-inch IPS screen and is powered by an Nvidia Tegra 3 processor.

　　The Wikipad will also feature support from cloud gaming company Gaikai, which was recently purchased by Sony for $380 million. Gamers will be able to stream Gaikai's library of titles to their Wikipad, which includes big-name games like Battlefield 3, Mass Effect 3, and Saints Row: The Third.