Three years ago since Sony published a well branded series of smartphone based on Android OS; Xperia X8, X10 mini, and X10 mini Pro. Though released with a locked bootloader, which makes it hard to flash custom kernels and systems, it boomed commercially. Since then though, the only official android version runs on froyo (2.1).
Now, Xperia X8 users can be able to experience the real Kitkat system! Credits to Team AndroidARMv6 for preparing the source compatible with ARMv6 CPU, and XDA Senior Member afi1982 for porting OmniROM based on android 4.4.2 to X8. Unfortunately, expect a list of bugs as this is still an alpha build. WiFi, Bluetooth, GPS, auto brightness and camera will carry out technical hitches. Beyond many hardware restrictions, developers are still looking forward of yielding a more stable build in the future.
XDA : DevDB Information