The iPhone isn't perfect, and worries about the so-so network (AT&T) and funky on-screen keyboard might keep some buyers away, according to this article from Reuters.

That, and there's the little matter of the phone's $500 to $600 initial cost. Assuming it reaches any kind of sales success whatsoever, there's bound to be a second, more improved version. Lots of people also feel it's best to wait until that second version appears, preferring not to be the first one to buy brand new, and possibly glitchy, technology.

That said, we don't see the fervor dissipating anytime soon.

Some waiting on iPhone improvements before buying [Reuters]