Hard to say. I think many people on HN would prefer an on-screen keyboard, but that's sampling power users. Then again, it may be that the power users are the ones that are willing to take a stand.
I would prefer google voice style, my phone rings and I am connected. I don't often take phone calls through my computer, despite using skype chat and having a webcam. I suspect many others are the same.
Which makes me wonder what percentage of internet users have ever had a google hangout?
