I suggested this at the end of the previous site and will do so again here. I would like a world map where users can pin their location and locations of their LGS's. This would go a long way towards shrinking the sometimes all too large world that separates Vintage enthusiasts.
It would also be nice to have a filter to show upcoming tournaments within a certain time frame. For instance, if I had travel scheduled to California in August I could center on the part of California I am going to and set the time range to August to see if there is a tournament I can hit while I am in town.
This would require a large amount of effort from the community side to populate, but I believe that if the tools are there they will be used.