I've had an H2 for a few years now, replaced my minidisk. Lately, I've been experimenting with using it together with KXstudio (a free, amazing, if difficult at first Linux multimedia production OS).
Reupj, Amari szi and Chusidl on our website, http://szelrozsa.org/cms/listen were recorded with this system. Those 3 tunes have fiddle, mandolin and banjo parts overdubbed in Ardour (part of KXstudio or runs on linux or macs). Very similar to pro tools, but again free and open source. Unlike Audacity, Ardour is a full blown multitrack system with all the bells and whistles (takes some time to learn)
The zoom can work as a USB mic, Linux not supported. I almost got it working anyhow but it was flaky. But it worked well as an input using the Line out. I picked up an M-audio usb interface which does work so now I can plug in guitar, mandolin, mics, the zoom, a mixer whatever.
This gives me a very inexpensive studio system. If I had a 1/2 decent laptop, I could have a totally portable studio.
The Zoom is still good out of the box without all the stuff.