Fujitsu has just released the U810 and T2010 tablet PCs. Both now come with a built-in HSPA modem and antenna for an additional $200 added to the $999 and $1,499 price for both the U810 and T2010. They still have the same 5.6-inch and 12.1-inch displays, 800MHz Intel A110 processor on the U810 and faster Core 2 Duo 7600 processor on the T2010.

Fujitsu has also added WWAN cellular data to their larger T2010 Tablet PC. 3G access will be provided by AT&T, who promises typical download speeds between 600 Kbps and 1,400 Kbps and typical upload speeds between 500 Kbps and 800 Kbps.

Advantech isn’t exactly known for consumer related computers. While we don’t think this new Tablet PC fits the bill either, the recently released Mars-3100S seems to still be pretty cool none the less.

The Advantech Mars-3100S sports a 10.4-inch touchscreen display and is ready to go with Windows XP. It is targeted towards more rugged uses in environments like field and emergency services. It also offers optional built-in WLAN and Bluetooth for wireless connectivity.

Toshiba brings us word today of its first Tablet PC to incorporate a touchscreen LED backlight display. The new Portégé M700 starts with a base configuration price of around $1,450.

The Toshiba Portégé M700 offers up a 12.1-inch WXGA display which the company says offers 30 more percent detail than a standard 12.1-inch display. The incorporated LED backlight display and associated anti-glare coating let one view it in a wider variety of settings both inside and out. Being a Tablet PC the Portégé M700 supports both fingertip input capabilities and traditional pen-based input, detecting and automatically switching between the different input methods as needed.