I also have used ovi mail, sync, maps on my nokia 5800. all worked well for me. I also used the music store on my pc as well as ota and ovi suite to do my backups and such. I am pretty content with it at a high level. I love being able to compose sms, pick up voice calls (routed to headset) etc right from my desk w.o having to pull my phone out of my pocket. hopefully updates will give me all the same tools and functionality with my n900 (sitting in a box in my foyer as we speak)