Sharing information like the (now defunct) MCM labs would be very helpful to the developer community. The lab 'gotcha' examples would be invaluable, not because you might run into the exact same 'gotcha', but because working through the labs would help people in the trenches, like me, learn a method for investigating and solving those exquisitey obscure bogeys that pop up once in a while.

I'm hoping Microsoft will get better at sharing information, something that other solution providers and open source alternatives seem to do as common practices.