Yesterday Nico and I did a session on what is new in Visual Studio 2008. This was for most people in the audience the first time they saw VS2008 so I think they left with a good feeling!
Some people asked me about the WCF demo where I showed some of the additional tools available with VS2008 for hosting a service. You can download it here. The stuff you will find in the WCF_ServiceImpl project debug settings:
This is where you can set your service library to start with the WcfSvcHost and test it using the WcfTestClient application, both which can be found in the Common7/IDE folder of VS2008.