FYI, here's a thread on the Archos 7 Home Tablet as as e-book reader that's getting started over at ArchosFans...
http://forum.archosfans.com/viewtopic.php?f=59&t=33126
I'm intrigued with the $199 price, and am considering it as an interim device until the "good" Android devices come out over the next year or so. Maybe even with some of them starting to appear this summer.
Three concerns, though...
1) Is decent book reader software available for both ePub and PDF?
2) Can one control screen orientation simply (even without an accelerometer)?
3) Is the device fast enough to handle snappy page turns and large PDFs?