I'm thinking about either re-writing my old XNA tutorials or starting a whole new series.  XNA is now in v3.1 and when I wrote the tutorials we had just jumped from the 1.0 refresh into 2.0.  I want to know what you want to learn about XNA.  Send me an email or post a reply and I'll try to structure it to include what you've asked (hopefully I can teach what you want to learn).

So...

what do YOU want to learn?!