Scotty, get those phazers ready – the battle for digital identity management is about to begin. The Google Klingons have yet not been able to successfully launch their not-so-secret weapon OpenSocial, while the Federation’s OpenId primarily seems to appeal to nerds.

But hey, behold: the times they are-a-changing: just a couple of days ago myspace announced the introduction of Data Availability, which is basically an interface allowing myspace users to share their profile data with third party websites like Twitter, Photobucket and the like.

Just two days after the information became public, Facebook started talking about Facebook Connect, a perfectly similar system – Techcrunch has more. Both interfaces will be publicly available for any interested partners in a couple of weeks and both will fight Google and OpenId for supremacy over digital id management – and the battle is set up to be very interesting to watch.