This post is syndicated from ReadWriteWeb.

Loopt is the third location aware mobile social network to become available for the majority of U.S. smartphones . It joins fellow competitors Whrrl and Brightkite, both of which have already started to gain traction (see ReadWriteWeb coverage of Brightkite). However, this is not a market where the first one to debut on the smartphone will be the ultimate winner. Instead, in the wild west of the mobile social networks, the key will be adoption. This is an area where Loopt is making headway, having recently announced deals with all the major U.S. carriers and support for Blackberry smartphones.