System requirements
? Just a windows/mac/linux system with a free usb host-capable usb slot, it does not require processing power at all, but it has to run to be running 24/7 or at least the time you want to be mining, with a stable internet connection. A netbook or an old notebook/machine is more than enough.
BFL is even developing an android app to mine with, beign able to use with any rooted android device (phone or tablet) that is in beta stages and will be released for free in Google Play market in the next days/week(s).
Funny BFL video