The last thing we heard about the first Windows Phone 7 update was that it should launch some time in February, but now it looks like the update has delayed and it wont hit Windows Phone 7 devices until the 8th of March 2011.
Neowin are reporting that the update has been delayed due to some last minute changes to the software by Microsoft, it then takes the mobile carriers around two to three weeks to test the software before Microsoft rolls it out.
It looks like Microsoft will officially announce the WP7 update at MWC 2011 next week, and that date is rumored to be the 8th of March. We will have more information next week when we here something official from Microsoft.