I wasn't at the Robot Block Party last year, but I was amazed this year at how much bigger it was. Two years ago, there were like all of 5 tables on the outside patio, this year there were like 20, and they were all full of robots. I didn't take any photos, but there is plenty of coverage elsewhere: HBRC member Tim Craig took a bunch of pictures. Camp Peavy, another HBRCer took some more pictures.
Updated 4/15: IEEE Spectrum also now has some coverage.