The Phoenix team will be doing a hands-on tutorial at CGO 2007, led by Andy Ayers, one of the architects on the team. I think the tutorial should be quite interesting. Not your typical tutorial. For more info, go to this link: http://www.cgo.org/cgo2007/html/tutorials.html#Practical:Phoenix
BTW, if you have specific topics you'd like covered in a tutorial on Phoenix, let me know.