its a tx2 Notebook you can get one for about 900$ on amazon.
Its a HP Touchsmart Tx2,
The hardware is amazing the orginal Touchsmart only supported two points of touch this device supports 10, and the tablet is not baddly priced right now. Other tools we used were the Touch SDK (will be released in .net 4), WPF, and C#.
A dependency libary was used to do the inversion that is open source.