@sortpot
Here are two links. The first for the host OTG adapter and the second to a forum with a download to root and add the "Market" to the Arnova 8G2, in case you have't already found it.
http://www.amazon.com/Micro-B-USB-Ca...7025030&sr=8-6
http://forum.archosfans.com/viewtopic.php?f=87&t=59520
The new ROM is really nice.
Regards - John