Well, Somerville's population density is misleading. The high number is due in part to the fact that we have just about the lowest percentage of green space of any city in MA. I'm not sure where we'd stand if zero-population areas (parks and such) were factored out. I mean, obviously Davis Square isn't nearly as densely populated as areas with high-rises and such.

A mini-TJs would be awesome. I mean, a full-sized one woudl be better, but I can understand why they wouldn't do it without parking. Hey, write them a letter and see what they say. :)