So where is the database?

If there's any legal or ethical problem with doing this using the Ohio Voter Registration files, I would like to know. I recently made an interface to it[1] to use when gathering ballot access petition signatures for Bernie Sanders in Ohio[2]. It's freely downloadable data, though[3], and the Board of Elections officials I shared it with weren't aghast at the idea.

[1] http://gobernie.net/ Source code: https://github.com/coventry/voter_lookup

[2] https://www.facebook.com/groups/929112173802716/

[3] http://www2.sos.state.oh.us/pls/voter/f?p=111:1:0::NO:RP:P1_...