What are Those Tablet PCs that Stock Traders Use?

Crash McBang asks: "Watching CNBC, I notice that shots of the NYSE trading floor show traders scribbling madly on what appear to be wireless tablet PCs. So what kind of hardware is this, and what are they scribbling?" I've been wait for tablet PCs for a long, LONG time. Hopefully they will be hitting the home market soon because they would be much more ideal for portable tasks where even laptops proove bulky and uncomfortble.