MySpace has just closed a deal with Cingular that will allow Cingular users who subscribe to the MySpace service to receive brief text messages when new comments and/or friend requests are posted to their MySpace site.

MySpace is also a key component of Helio’s new cell-phone launch.  My Space is already enjoying the company of Google and Yahoo! as one of the top three most-visited sites on the Internet.

Google and Yahoo! have both launched their own respective mobile services, Google mobile and Yahoo! mobile. But the mobile landscape is still very much undefined and will prove to be an interesting platform for the Internet majors to compete over.