I havnt held the infuse, but I've seen it. A friend of mine had one.
4.5 is too big for a phone. Even 4.3 is a little big IMO. And the phone is kinda ugly to be honest. I know there's a market for it but I wouldnt want one if I had a choice.
I'd like a 5" screen :icon_ banana:
I thought the Droid Charge may be big enough, but I think a 4.5" would be nice. I can see where it may be too big for some, but I would have no problem with it. Once upon a time I thought the OG Droid was adequate, however the Charge is considerably larger and considerably lighter even with the dual cover. I'd also tolerate a heavier device if it means a great battery life.