I have an i8510 and much to my annoyance, it is not fully compatible. I can pair it OK and it copies the phonebook etc but the main problem is it no longer connects automatically when I switch the car on and I have to fumble around and do it manually. Even then it quite often fails.
Really annoying as it worked perfect with my previous 2 phones (Nokia N95 & Sony Eriksson K800i)
click on ecodrive at bottom left - then blue & me then phone compatibility list, from here select your phone to see full report of your phones capabilities etc