Way too big for my taste. I read a review from a guy on the techno buffalo website that originally thought the size was laughable, but ended up loving it and was using it as his daily device for a while. The guy was previously using an HTC Titan which is also in the 4.3 screen, I believe.
The speculation of what the new iPhone will have/be is always going to be way beyond what Apple is planning on doing. Suffice it to say that it will be better than the previous model and it will be faster. Any speculation beyond that is irrelevant
I would love a bigger screen. My eyes would appreciate it a lot. Would be nice if in the best of both worlds there were 2 sizes made available. Sigh..If only the Ipad could be a phone too. Is that too big? lol