Thank you for contacting the Sony Ericsson support centre.
We can advise the Sony Ericsson Xperia X10 Mini, Mini Pro and X8 were all tested on Android 2.2 but did not improve the handset but rather diminished it as it started to run slower and crashed frequently which will not have improved the user experience.
The decision was then made to keep these handsets on Android 2.1 as they were originally designed to go up to Android 2.1 and no further, however as Android 2.2 was requested by our users the handset was tested.
Once we were able to update the Sony Ericsson Xperia X10 to Android 2.3 we then also tested the Xperia X10 Mini, Mini Pro and X8 with this Android platform, however it again diminished the handset.
Sony Ericsson decided to keep these handsets on Android 2.1 so the handset would perform at its highest. As advised we will continue to release system updates for the handset to try and improve it as much as possible, however this will not be performed by updating the Operating System to Android 2.2 or 2.3.
We can only apologise for the inconvenience caused and will ensure your feedback is passed on to the relevant department to be looked into.
For further information on Sony Ericsson products, services and support please visit sonyericsson.com.
Should you require any further assistance then please do not hesitate to respond to this email or call our customer support on 08705 237 237.
Sony Ericsson UK Customer Services