I’ve just managed to install @chrmhoffmann’s Kitkat. 
- Complete Backup (Titanium Backup, Photos, CWM backup everything)
- Sideload fp1-kk444-CH-0.9.4.zip
- At the first boot, after 2 minutes this appeared:
Calling works, everything else too so far. I’ll be restoring apps one by one from my Titanium Backup (Davdroid sync works flawlessly).
I’ll report back, if I run into obstacles!
Edit Day 1:
###Good Things
- I did not loose my IMEIs! (I was coming from stock FP1X (a beta release).)
-
@chrmhoffmann: KitKat/ your ROM has App Permission management?
Is it different from XPrivacy? Do I need XPrivacy in addition? -
shutting down and booting up are incredibly fast (under 5 seconds)OK, after installation of XPosed from here and GravityBox [KK] boot up is as slow as ever…
###Bad Things
- [cosmetic] When I connect the phone in MTP-mode to my Windows 7, it shows up as ahong89_wet_jb2.
- [cosmetic] The SMS app is called “Benachrichtigungen” now (which means notifications) instead of SMS or “Nachrichten”.
- [cosmetic] The big G/3G on top next to the connection quality indicators irritate me. I hope I can do away with this with GravityBox.