Finally after a really long wait Xperia X10 users can start upgrading their phones to Gingerbread, this is first only released to generic devices and not for operator ones.
Even if there will be some operator kits getting this upgrade – some of you will not be able to upgrade your customized version of XperiaTM X10.
Unfortunately the Xperia X10 mini and Xperia X10 mini pro will not be upgraded
For XperiaTM X10 mini, mini pro and X8 there are as communicated earlier no plans to update beyond the current Éclair version. There are two mains reasons for this: The XperiaTM X10 mini, X10 mini pro and X8 all have less RAM memory than XperiaTM X10. By this we can’t guarantee a good user experience by upgrading beyond Android 2.1. The upgrade of XperiaTM X10 also was made possible due to that we had a code base that mostly could be reused. For the mini’s, who have a different user interface, this possibility did not exist.
So for us who own the Mini Pro, -a great phone by the way- there is no other option than just stay with Android 2.1 or root the phone.