Fusion Garage has lowered the price of their upcoming Grid 10 tablet to $299 for the Wi-Fi model and $399 for the Wi-Fi + 3G version. The $200 cut comes just days ahead of the scheduled September 15 ship date.

It seems that HP may have found the secret to success against Apple’s dominant iPad, although they did so at the cost of their own tablet. When HP announced that they were discontinuing their WebOS-based TouchPad tablet and slashing the intro price to $99, consumers quickly gobbled up the entire remaining inventory.

HP was admittedly surprised at the overwhelming response and is preparing a final run of 200,000 units which will likely be spoken for via pre-orders through the company’s online store.

At $299, it wouldn’t be a surprise to see Fusion Garage move a sizable number of tablets. The Grid 10 features a dual-core Nvidia Tegra II processor operating at 1.2GHz, 512MB of RAM and 16GB of storage. Highlights of the device include a high-resolution 1366 x 768 display and a custom Grid OS based on an Android kernel.

Grid OS is not a reskin of Android, but a new OS completely. As the name suggests, the home screen of the device is based on a grid map used to organize clusters, or folders.

Engadget says the price cuts went into effect earlier this morning. There is no indication if those that already pre-ordered ahead of the price cut were required to pay upfront and if so, if they will be refunded the difference.