I was recently able to snag a good deal on a PreSonus AudioBox 1818VSL. I picked it up with the intent of it having a permanent home in my band's live rig so that we can record our shows.
Last night out of curiosity, I plugged it up into a machine running the AV Linux 5.0.2 Live DVD....and JACK saw all 18 ins and outs.
I was able to successfully record audio from the first channel, but it was late, and that was all I was able to test at the time. I'm hoping to test as many simultaneous inputs as I can given my current resources (6 mics...but I'm going to have to acquire some more mic cables). However, if this device is able to reliably record 16 channels simultaneously, I might be unracking my Layla. =X