After teasing a new tablet under the parody brand “TabCo” for the past several months, Fusion Garage took the wraps off of the Grid 10 tablet and a new Grid 4 smartphone on Monday. The Grid 10 offers a custom “GridOS” operating system, is equipped with a 10.1-inch 1366 x 768-pixel display and is powered by a dual-core NVIDIA Tegra 2 chipset presumably clocked at 1GHz. The GridOS supports Android applications as well, and users can purchase and download new apps from the “Grid Shop” or from Amazon’s App Store. In addition, GridOS has a unique home screen that allows users to create “clusters” of applications that span over an infinite amount of space. Fusion Garage also announced a GridOS-powered smartphone — the $399 Grid 4, which will ship in the fourth quarter — that will be powered by a 1GHz Qualcomm Snapdragon processor. The Grid 10 Wi-Fi tablet will launch on September 15th for $499, and a 3G-capable version will follow for $599. Amazon will carry the tablet and pre-orders are open now. Also of note, all existing JooJoo owners will receive a free Grid 10 in the coming months.