There’s nothing to suggest that the service will ever be open to new users… and this has been further compounded by the release of a new interface for Google Analytics, MeasureMaps’ older (and slightly crustier) brother.
From what I can, Google Analytics has been slowly bathed in the GUI-goodness of MeasureMaps, with some of it marinating nicely into the more established product. Such evidence confirms my suspicions that MeasureMap’s acquisition was made more for it’s interface fu (along with its fu master, Jeffrey Veen) more than anything else. Clearly the intention has been to improve Google’s main stats offering rather than launch a secondary services (such behavior got Yahoo! into a bit of trouble).