You mean the Nexus that has a screen far too big to be usable as a phone? Apple is doing the right thing by not following the current trend of bigger and bigger screens on "phones." By the mid 90s cell phones could easily fit in pockets. Why are these manufacturers going backwards?
For myself at least, 4 inches is about how big a phone should be.
If it gets bigger, it’s not has holdable. If it’s smaller, even if you have incredible resolution, details can be lost when watching a video or looking at a picture.
I think 4 inches is the sweet spot for phones. I think 10 inches is the sweet spot for tablets, though I can appreciate some body with artistic aspirations like the new 13 inch tablets that are available.
I’m doing fine with the Galaxy Nexus as a phone. Fits in my hand just fine. I doubt the iPhone ever goes as big because of the hit to the battery pushing a 720p phone with a 4.6 inch causes. However, a move to a 4 inch screen seems likely.