Nov 16, 2010 16:51 GMT  ·  By

A few weeks ago, Sony Ericsson started to push out a new software update for its Xperia X10 handsets out there, none other than the Android 2.1 OS upgrade the mobile phone maker promised for the first time several months ago.

The OS upgrade started to roll-out in Nordic countries in the beginning, but it was made available for more markets in the meantime, including Australia, Canada or Germany, on which we reported on Monday.

Moreover, it appears that additional Xperia X10 users got the update today, including those living in the UK, which are Orange or Three customers.

Of course, the generic Android 2.1 update for the Xperia X10 devices on the UK market was pushed out about two weeks ago, but wireless carriers needed some more time before making the solution available for their users.

For the time being, no info on when O2, T-Mobile and Vodafone Xperia X10 owners will receive their software update emerged, but it should not be too long before that happens, especially since O2 promised the solution for yesterday.

“We’re still unable to give a definitive time for when such an update will be available. As soon as any further information around this is verified, we will endeavour to inform you,” Vodafone commented on the matter, an article on xperiax10.net states.

A post on Sony Ericsson's blog offers some additional info on the software update, providing info on the model numbers that should have received the software the past few days.

The model number the company refers to is the Sales Item number that each handset should have on it next to the IMEI, and which consists of 4 digits, a dash and then 4 digits more.

According to the said post, more than 25 Xperia X10 model numbers should have received the update today, along with 7 Xperia X10 mini models and with around 12 Xperia X10 mini pro (these device numbers are not limited to the UK market).

Those of you who would like to check on the specific model numbers that should have received the software starting today should head over to the company's blog here.