I wasted 6 hours today fighting with this thing.

Windows menus are illogical and unpredictable.

Support was unable to get Internet connectivity working.
They kept wanting to blame it on the 8525. So I switched my
SIM back to my W600i, and it wouldn't connect to the Internet either,
proving the problem was at Cingular's end.
After three more calls, someone figured out
"Oh we need to set up a PROFILE for you on our end"

Then 3G coverage is totally unpredictable in Houston, TX, and not at
all what Cingular's coverage maps show, so without warning you're
dropped back to slow or hyperslow speeds.

What was cute was to turn on "Wireless Lan" and then drive along any
freeway and see all the "unsecured" networks popup from many hotels
and motels that one could connect to via WiFi.