2. Video chat, while it may function, it does not function well at average evdo speeds.
3. Evdo is as fast as ~ 2.5 mbps which would be acceptable for most purposes, but on average is much slower, around 1 mbps. And often slower than that. That's pitiful.
4. A personal example is my use of play on. I can access my entire movie collection from anywhere. It plays ok over 3G. It will play great over 4G (as it does over wifi). With hdmi mirroring, I'll have a 300+ movie collection in my pocket, playable on any tv. That's pretty cool I think. And there's a lot of slingbox users that will definitely appreciate 4G as well.
5. File downloads! More speed = better. But that one is obvious.
6. My time is valuable. Anything that let's me do what I'm doing faster is always a plus.
7. For the apps and services we don't even know we want on mobile yet. More capability means more possibilities.