ok i am an owner of an iphone and an n900 and i owned a htc hd2.

most of the time all phones ran smooth.

sometimes all phones do random things like lock up or hang on calls.

the n900 is no where near as smooth as the iphone- but it surley does alot of other things better.

my n900 is not filled to the brim with apps and stuff, neither is my iphone.

i will be getting the android htc whatever (the euro nexus) is called in april.

but up till know and i have used an iphone 3gs for 1 month(not worth the upgrade from the iphone 3g after 2 years as its just boring me). the n900 is the best phone out there.