Do not buy the LG KU-990...it is a terrible case of decent hardware with 0 software support.
As far as phone functions, it is bad, loosing signal intermittently. If a phone fails to do the very basic function for which it is designed reliably, it is beyond useless in my opinion.
As far as software is concerened, it is slow and quite terrible, you literally have to "hack" the phone to use new themes...
There are a few pluses though:
+Camera is excellent (nice 30fps at VGA resolution, I use it for all my tesla coil vids on youtube as I don't care is the em field destroys it), has option of 120fps shooting, also quite fun.
+Screen has decent contrast and is a decent screen in terms of touch.
I speak from experience as it was my previous phone...I would never buy an LG phone again. Seriously buy anything but the LG...