Hey all - I know that jolouis has a great OTG male mini-A / female A USB adapter (see this thread), those of you who prefer a cable instead, I just purchased an OTG cable from ebay from this seller. Took about 10 days to get from Hong Kong, but was as advertised - plugged it int my N800 and then a flash drive - recognized it right away and was able to access it, no problems.

No affiliation with the seller, just a happy buyer wanting to share in the find.