There's definitively a large market segment for whom the iPhone form factor is too small. Myself included - it was one of the big things that stopped me from getting one; I just can't type on the thing at a reasonable speed.
My HTC Desire HD is more than small enough to fit in my pocket, and rests comfortably in my hand, and I love having a decent sized display and I can actually type on it at a tolerable speed. I could easily handle a device a bit bigger than that with one hand, I might just get one because it reduces the number of situations where the screen is "too small" for it to be nice to use.
There's definitively a large market segment for whom the iPhone form factor is too small. Myself included - it was one of the big things that stopped me from getting one; I just can't type on the thing at a reasonable speed.
My HTC Desire HD is more than small enough to fit in my pocket, and rests comfortably in my hand, and I love having a decent sized display and I can actually type on it at a tolerable speed. I could easily handle a device a bit bigger than that with one hand, I might just get one because it reduces the number of situations where the screen is "too small" for it to be nice to use.