I just wanna share this incredible web site, although maybe some ads disturbing and annoying
Use your chrome browser on PC, go to chrome store, search with key "apk downloader"
then install it.
or you can directly go to URL
I;m sorry I means XZU :D
Just view days I hold my Xperia Z Ultra, one big smartphone ever.
I wanna sharing theme to makeover your XZU "run" IOS7 feature.
it call JBOS7.
you can find on: mycolorscreen.com/2013/06/11/jbos7/
JBOS7 means Jellybean...
Good news for PS lover, Sony mobile officially provide link for PSM (PS Mobile)
see content & services page