Background: my experience with 4e is that I've been playing in a playtest game that my friend Keith (as in, Keith Baker, aka gloomforge) has been running to help him figure out what 4e Eberron will look like. Since the books are now out, I figure the NDA no longer applies. I have the books, but I've only read a tiny bit more than what I read in preprints to figure out my character.
I figure this may be kind of a slow conversation, because I've got so much else going on right now, so fair warning that I may be slow to respond to comments.
So... what are people interested in hearing about?