Is tabbed chat possible? Sometimes I'm having a PM conversation or trying to follow guild chat or whatever and I can't keep up because 100 or guild or whatever is scrolling so fast and also I'm trying to kill some n00b and you know?

It'd be cool to be able to toss a certain channel or PM stream into it's own tab, and then click over and review at leisure.

It's definitely possible.
Do you know what else is possible? Using the search button! :P
You can either make your own plugin for it, wait for the developers to implement it soon™, or wait for someone else to make a plugin or add it to the interface.

Something like this?

http://www.vendetta-online.com/x/msgboard/9/19121

(one of moda's)