I have an Android tablet, and my brother and dad have iphone 3g/3gs, so i've used both OS's extensively, and i still prefer using my N900 to both of them.

I'm probably going to get an N9 when it's available, but i'm in no rush for it, because i'm perfectly happy with my N900 for the considerable future.

The thing i wouldn't buy, is an iphone4/5/any or an Android phone, because from using both, i couldn't stand either of them as my everyday phone OS.