I rarely make phone calls and if I do need to, I just use a bluetooth headset, earphones, or the speakerphone. Holding a phone up to one's head is quickly becoming less and less needed. Most of my communication is done my texting or some other text based medium. I use my Galaxy Note 2 as my primary web surfer, news reader, camera, GPS, and I often watch videos on it too. Using it as a phone is low on the list of things I do with it.
As I've said in a past thread about the Galaxy Note 2, I thought it could be bigger since its not actually that large once you've used it for a few weeks. What will most likely happen with the new 6+ inch Android phones is that the bezels will become smaller and we will actually approach true edge to edge screens. This will allow them to be about the same size as the current Galaxy Note 2 but with a 6+ inch screen within the current form factor. If you have a Galaxy Note 2, you can easily see how they could fit a 6+ inch screen on there without changing the over all size much.
I am hugely excited to see what Samsung brings to the table for the Galaxy Note 3 and there is a very good chance I will be buying it even though I just got my Galaxy Note 2.