BigPicture -- Back a way from that intersection a bit -- if you look at the first aerial from Downburst in the Future Skyline -- I identified MIT-Kendall as and up and coming Dense Core on parr with th Financial District or the Copley - Pru cluster
Obviously there needs to be more residential development and their will be as Boston Properties has initiated the discussion of building residences on top of one of the parking garages, MIT has proposed residential and so forth
My point is that while Google is not building anything themselves their presence as a Global Giant just like GE in Southey -- is and will have disproportionate impact on the surroundings -- disproportionate to the scale of the particular installation.
So far there are really only two other examples of that scale of influence in the immediate vicinity of MIT -- Novartis and Microsoft [and the later has recently moved some of their people out to Burlington]. Today -- Biogen, Pfizer, Genzyme, Schlumberger, Amazon, Facebook and even IBM lack the combination of being a Global Giant and having the local impact of Google, Novartis and MIT itself.
Of course this could change -- go back a decade and neither Novartis nor Google had the impact in Kendall that they do today