Interesting idea. 

Though the 8GB Nexus 7 is about 160-180 used, the PI may be cheaper, but it could be argued that the Nexus 7 would be more powerful.


It would be interesting to see if a Nexus 7 would work in that way.  It would make it very useful.  Though I would like to see if you could run multiple USB Rigs on a single Nexus 7.

Interesting idea, but I would still like to get the PI working as intended and see how it works for this purpose.