We also got an early glimpse of battery performance from Intel's incoming Haswell processor: you can expect to glean 10 hours of use in tablet mode, which is on par with many lower-powered tablets already on the market (think: Atom, ARM, et cetera).
And remember, FlipShare has to be running and streaming video over the dongle the entire time you're using the set-top, so a lower-powered machine might feel the strain -- and if your computer goes to sleep, hangs, or crashes while you're watching the FlipShare, well, you won't be watching it any more.