It looks like they're building one at 95 and 195 near Providence by the fall. An another somewhere on the Mass Pike by end 2013, possibly in Auburn. IMHO, there still is a hole in Eastern MA for people going to the Cape from the north, or people going up to Maine from the south. One at the intersection of the Mass Pike and 128 would be good I think. Hopefully, the'll continue building more in the future.