Samsung has released the WiFi-only version of the Galaxy Tab 10.1 in the US. The WiFi version of the 10.1 has actually been available since June 8, 2011, though only in NYC. Now it's available nationwide: you can get it in 16GB ($500) and 32GB ($600) flavors.

The Korean company is already promising a future software upgrade for the device. Unfortunately, that won't give it a USB port: for that you'll have to shell out $20 and get an adapter. The update will, however, add and or improve various Samsung-only services, including the TouchWiz UX, Media Hub, Readers Hub, the Social Hub, and Allshare. To promote the launch, Samsung has uploaded the following video:

The Galaxy Tab 8.9 will soon be available in 16GB ($470) and 32GB ($570) versions. The two new Android 3.1 tablets join the original 7-inch Galaxy Tab, which has already been quite a success for the company and has received an upgrade: to Android 2.3.

The hardware giant is touting the two new devices as the world's thinnest mobile tablets, at just 8.6 millimeters thick. The Galaxy Tab 10.1 weighs 595 grams while the Galaxy Tab 8.9 weighs 470 grams. Both support HSPA+ network speeds of up to 21Mbps, Bluetooth, and Wi-Fi 802.11 a/b/g/n connectivity. They also feature a 3 megapixel rear camera and a 2 megapixel front camera, providing seamless 1080p HD video. The two devices are powered by a 1GHz dual core application processor and both feature a 1280 x 800 resolution WXGA display. For more information, you can read our review.