TSSJS Barcelona Compass Presentation

I have uploaded the Compass presentation that I gave on TSS Java Symposium at Barcelona.

Any comments about the presentation are more then welcomed, since I hope this will be the baseline for other presentations I do about Compass, and I wish to refine it as much as possible. Also, what do you think, should I have started directly with Compass and Compass features, or should I stay with what I have?