I looked into it about a year ago and a good friend who uses his frequently told me it's great for email and such but don't think you're going to surf the web with it. GRIB files should be fine, as would an occasional low definition picture. Hi def, web graphics or audio/video streaming just is not going to happen was his advice to me.
Craig - AKA Some Clueless Idiot
The person who is saying something is impossible should not interrupt the person who is doing it.