Quick post with my Rosum hat on. Today Rosum announced (pdf link) the launch of its Alloy chip, which utilizes broadcast TV signals to provide precise frequency, timing and location information for mobile devices and femtocells. Alloy was developed in partnership with Siano Mobile Silicon, which provides Mobile Digital TV receiver chips, for handsets, laptops, PNDs, and other mobile devices.

Speaking as a long-time Rosum contributor, this is a proud day.

I’m happy to announced that I am working with the investment team at Presidio STX, the venture investment arm of Sumitomo Corporation, one of Japan’s oldest trading firms.