According to the official Sony Ericsson Blog, if you are a proud owner of the Sony Ericsson X8, then you might find Android 2.1 finding its way to your device sometime soon.
The things added besides the obvious step-up to Android 2.1 are the same as for the already started roll-out for Xperia X10 mini and mini pro.
For instance, you can expect things like 720p video recording, improved social networking integration and five home-screens. The blog post includes a list of SI-numbers, which will give you some idea as to when you can expect the update to your phone.
Also for any newcomers – the list below is a list of “SI-numbers” – that number can be found on the label of the back of your phone. So check what SI-number your phone has and then search this page to see if it’s out yet.
The list is pretty long, so rather than paste it here, check out the official blog and see for yourself.