I think Ulocate will be purchased by google... They seem to have a great niche in the mobile space. Random, but thoughts?
I think a better target for them might be a company like loopt or whrrl. More users and a stronger growth curve.
http://www.techcrunch.com/2006/10/18/dodgeballcom-officially... http://gigaom.com/2007/04/15/dodgeball-founder-quits-google/
Or Jaiku.