i have been using 9900 for some days now.
love the extra wide space for keyboard, although still learn to get used to touch/keyboard combination.
one thing bothers me tough... the battery drains very fast... from full to yellow is only about 5 hours!!
my old 9700 lasts more than a day,
I am using 18.104.22.168 originally from the shop. now downloading .353 ..
hopefully this solves the problem...
i will post the update after installing the new os...