The latest x8 firmware news from the XDA forums is as follows:
GingerDX v17 – lightweight based on Gingerbread from the CM nightlies with optimised DX libraries
GingerXperia V8 – based on MiniCM but with Xperia apps and nice styling
GingerCyBorg 2.3.5 | v004 – based on MiniCM with honeycomb features and DX libraries
DioEclairMIUI-v001[Based on 2.1.1.A.0.46] – A clean stock firmware (Eclair) but without Sony stylings.
H_Stock v2 [C.0.0 mod] – another modified stock firmware
Fd xperience V1.2.0 – A Gingerbread firmware with some Sony style features
If you’re not up to date, or starting out from scratch here’s some links to get your device rooted and a recovery installed:
If you’ve tested or use any of the firmware listed please give feedback to other users via the comments.