I went to test on the i8910 HD last night, the screen was gorgeous & marvellous in the first sight.
In terms of the UI, even with its capacitive screen type, the touch & scrolling feel is kind of
different compare to iPhone & other capacitive screen phones. You just can't scroll thru the
menu page by page as what other capacitive screen phone does. I believe this is the constraint
of the Symbian OS.
Did any of you guys who own the i8910 HD notice that there is an annoying mechanism moving
sound came out from its camera when you try to press on the camera shuttle for focussing?
Wondering whether this is a common symptoms thru out all the i8910 HD phones?
I tested on the macro mode trying to snap a small object in very close distance but the phone
just couldn't get the focussing clear besides hearing the "tek tek tek tek tek..." sound from the
camera, sigh...
The effort for the gallery menu to show up all the images smoothly/completely when you tried to
scroll up/down the pages also another minus point of this phone.
Except the above two to three negative feedbacks, the overall phone performance is pretty impressive
especially on its AMO LED screen, video playback capability & also the external speaker sound quality
(the best that i have ever heard).
I must agree that this is the best Symbian phone in the market at this point of time, bravo!!

S60 5th definitely is not fully optimised for touch usage, the UI is a bit unfriendly as some needs a single while others needs double touch
. I've Nokia5800 so i know how it feels.