Since when are games and VoIP high bandwidth? I was just playing a FPS for a few hours and I glanced at my router's traffic while it was displayed on my laptop - I was using abotu 8 KB/s in each direction. With VoIP it depends on the codecs used, but I believe that 16 KB/s in full duplex is plenty for a nice quality call (Cell phones use less, though I don't remember specific numbers.)
These applications are not High Bandwidth, they're sensitive to latency.
The thing that sort of irks me with net neutrality (In the sense that ATT wants to charge Google to access ATT's customers) is that when someone pays for Internet access, they generally expect to be able to connect to any other host on the net. Consider that Google is paying (a fortune, I imagine) for access, and all of a sudden if they don't pay a company that does not provide them internet access, their customers are lost to them. I fail to see how that isn't extortion.
What is worse, is that it will break the Internet into segments. If Google can't access ATT's customers, ATT's customers are now not really on the internet at all, they're on a private WAN that just so happens to forward some traffic to and from the public one.
The Internet is about bringing networks together, not isolating them. This use of net neutrality seems like it'd start a rather nasty trend.
If, on the other hand, they just mean that they're going to invest a lot of money to apply proper QoS to their networks in attempt to prevent bandwidth hungry applications from increasing the latency of applications sensitive to such things, then I suggest that they go right ahead.
I still think the whole neutrality thing was a gimmic to distract everyone from the ATT / Bell South merger though...