I added forward geocoding to the demo. Its weakest point at the moment is resolving cities and address to zip codes and vice versa. It will get better with time.
I'm close to beta at this point.
Since there is no installer I'm going to let a few people download the database to try out.
I'll make an announcement soon, I'd like to collect feedback on the demo first.
http://www.johnsample.com/reversegeo/default.aspx