WPF (70-502), WCF (70-503) and WF (70-504) Exams
As Gerry mentioned in his blog, WPF, WCF and WF exams went live on Monday last week. As you may already know, these are Technical Specialist (TS) level exams so they are added to your MCTS credentials. This is how the MCTS logo looks like when you add the WCF and WF credentials to the logo (I know it is way too wide!):

If you are an existing MCPD (Win, Web or Enterprise) and want to upgrade, you will have to wait as the PRO level exams are not out yet.
And by the way, the ADO.NET and ASP.NET exams are both in beta (beta period is extended until 4th May) so if you are interested in taking them use the promotion codes mentioned here.