Comcast's latest update to the Xfinity app finally adds the much anticipated video on demand feature.  You can watch shows and movies from some of your favorite channels, including BBC America, Cartoon Network, Cinemax, Starz Encore, HBO, MoviePlex, Showtime, Starz, TBS, and TNT.

It's a fairly impressive list, but it's definitely far from complete.  Only those ten networks are currently available and there's no word on when we'll start seeing more.  There's also no word on if and when we'll get to watch live programming on the iPad.