This is actually one of my concerns, and something that might hamper adoption by players who could bring real liquidity to the system. 

Since the ledger is public, it seems like an opportunity for a company to provide a service where you give them a ripple address (or group of addresses), a jurisdiction and a time frame and then they produce a tax compliant report.

It would be nice to see this built in, but with all of the possible jurisdictions, I don't see that happening. Do you think there would be enough people willing to subscribe to such a service to support the programmers and various tax lawyers required to make it happen? What do you think serious traders would be willing to pay for this?

Note: I don't plan to do this myself. I just want to know if you think there is enough demand to support someone doing it the right way.