"Is that a distro optimized for minimal battery lifetime of your Eeepc?"
There are two FREEEEE modes: full-on media and low power ebook.
With jack, multiple mplayers, freej, firefox, chat, xournal, an offline copy of wikipedia, an image viewer, wifi, camera, etc all running it runs hot, yes. :) But it also runs all that fine without dropouts or crashing. jack performs reliably *now* and is never the weak link. Occasionally I have used pulseaudio as a jack client, which is convenient, but it is no where near as reliable as jack.
jack is clean, "feels" like a nice unix utility (it does its "one thing" extremely well), and has a committed upstream community.