Yes, I'd like to know if there are news too! I tried kitkat a while back on the t68, but WiFi didn't seem to work (
https://www.mobileread.com/forums/sho....php?p=3300393), so I went back to ics. I'm finding non-qwerty keyboard layouts a bit complicated (I'm planning to write with a Bluetooth keyboard) and I believe that KitKat may be a bit more user friendly in that respect.
Considering I didn't continue trying the current 4.4 build, I'd be curious as to your further experience with it -it seems you didn't have the WiFi problem?