The sixth Under the Radar event, held in November 16th at Microsoft campus in Mountain View, featured 32 emerging start-ups in the mobile sector.

I was not able to participate, but  browsing through the list of participating companies is interesting read too :-) Some of the companies are "old" names (like 4info, Pixpulse, Pixsense, and ScanR) from Silicon Valley Mobile Monday events. There is a number of mobile advertising companies (will this ever get going... I participated in Wireless Advertising Association in early 2000's, but have not seen anything major in the mobile advertising sector yet... which is also a good thing - I want to have my phone as advertising free as possible).