The versatile HP Compaq tc4400 Tablet PC adapts to the way you work with ultra portable mobility, superb performance, and productivity-enhancing features. Tablet functionality provides the flexibility to work when, where, and how you want. A 12.1-inch 160-degree wide-viewing angle display, active digitizer and specially treated glass provide superior viewing, durability, and a comfortable writing surface.

Dimensions (WxDxH): 11.2 in x 9.3 in x 1.3 in.
Weight: 4.6 lbs.
Features: Execute Disable Bit capability, Intel Virtualization Technology, Enhanced Intel Deeper Sleep with Dynamic Cache Sizing, Intel 64 Technology, Intel Advanced Digital Media Boost, Intel Advanced Smart Cache, Intel Dynamic Bus Parking, Intel Dynamic Power Coordination, Intel Intelligent Power Capability, Intel Smart Memory Access, Intel Wide Dynamic Execution.
Interfaces: 2 x Hi-Speed USB - 4 pin USB Type A
1 x PoweredUSB 2.0 - 4 pin USB Type A
1 x display / video - VGA - 15 pin HD D-Sub (HD-15)
1 x display / video - S-video output
1 x microphone - input - mini-phone stereo 3.5 mm
1 x audio - line-out/headphones - mini-phone stereo 3.5 mm
1 x modem - phone line - RJ-11
1 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45
1 x infrared - IrDA
1 x docking / port replicator
1 x battery
Software: Drivers & Utilities, Adobe Acrobat Reader, InterVideo WinDVD 5, HP ProtectTools Security Manager, HP Help and Support, HP One-Touch Button, HP Mobile Print Driver, HP Wireless Assistant, HP Qmenu, HP Tablet PC Tour, Norton Internet Security (60 days subscription), HP OpenView Radia Management Solutions.
The good of this product is the battery life, responsive keyboard, fingerprint reader, ambient light sensor automatically adjusts screen brightness, three-year warranty.
The bad is the weight  who is a little heavy for holding in one arm, base configuration could use more RAM, lacks a FireWire port and a built-in optical drive.

The HP Compaq tc4400 Tablet PC is a full-function PC delivering performance and compatibility in an innovative form factor, while simplifying your computing needs with the added convenience of handwriting. The light and stylish design is meant for mobile professionals needing powerful and highly-mobile computers that also offer enhanced security and reliability.
The HP Compaq tc4400 Tablet PC is the ideal choice for enterprise-wide deployment to highly mobile users desiring innovation and versatility.