The latest x8 firmware news and releases from the XDA forums are as follows:
MiniCM7-2.1.5 – Gingerbread 2.3.7/CM7.1 unofficial port for the x10mini ‘The true CyanogenMod7 Experience!’ Note that the requirements for this now include an unlocked bootloader and the nAa kernel.
Alfs for GingerDX |v05 – A kernel for GingerDX based on the FXP work.
AOSP ICS | Android 4.0.1 | Alpha 0 – ICS straight from the AOSP source; special features include hardly anything works yet ;)
Ice Cream Sandwich Port to Xperia X8 – A new version is out although not working but one to keep an eye on!
If you’re not up to date, or starting out from scratch try using the new flashtool. Alternatively here’s some links to get your device rooted and a recovery installed:
Now if you’ve run into trouble then you might want to check out this guide to get your phone up and running:
If you’ve tested or use any of the firmware listed please give feedback to other users via the comments.