If there is one thing I hear from people over and over again it is this.  Please make WCF simpler, easier to understand and use.  I totally agree with this sentiment.  In fact, in .NET 4 we made it much easier but we still have a long way to go.  Once in a while each of us gets the opportunity to change the world for the better… (ok we aren’t solving world hunger here but…) If you want your voice to be heard take a minute and fill out this survey.