Catching up a bit (this was like three weeks ago):

The Google Developer Day in Munich in September. Lots of people there (500?). The event was mostly what you'd expect from Google (colors everywhere, geek toys around to play with, ...). Although I had expected that, I still was somewhat disappointed. The talks mostly covered APIs. Some at least showed demos of what is possible with the latest revisions, but some where a bit like "this is how you query the number of views for a YouTube video". For someone who has been using different APIs for years it's just much more convenient to look it up in the online documentation when needed.

But I don't blame Google for that; I think it was what many visitors expected. The reason I actually went there wasn't for the talks, but to talk to Google people, to maybe establish some link between the university and Google (however it seems that Google in Munich mostly does mobile stuff, which is not too relevant for our group).