Unless you want something more power efficient. http://www.minnowboard.org/static/pdfs/Getting%20Started%20w... says this runs from 5V, 2.5A. That's 12.5W. Quite a lot for mobile, but a Pentium 4 CPU alone will use at least four times that (http://en.wikipedia.org/wiki/List_of_CPU_power_dissipation_f...), for a < 2GHz variant.