UMPC - Tablet PC

Does anyone here have a UMPC (Ultra Mobile PC) or a Tablet PC?

How is the stylus? For an example, if I open up firefox, can I WRITE the URL using my stylus or do I have to use the on-screen keyboard?

The UMPC I'm looking at is http://www.samsung.com/uk/products/mobilecomputing/ultramobile/np_q1_v000suk.asp