I imagine folks that do everything from a web browser won't understand, but I can't stress how important keyboard-friendly UI is for speed. It's even more important with typing-heavy apps like chat. Every time my hand moves to a mouse it slows everything way down.
This is one reason why the shift from a trackpoint mouse to a touchpad wasn't as big a deal as I thought it would be, even though I used to be as die-hard about it as other Thinkpad users. I just don't use the mouse that much in either case.
@kyle exact same feelings here. I thought I’d lament the loss of the trackpoint, but I use a mouse so infrequently it’s not really an issue.
Unfortunately for me, the applications that I use at work are all web based. They have clients for windows, but I am relegated to a browser if I want to use linux.