Microsoft have just announced that the Microsoft Certification Exam 70-540 will be in Beta form again starting October 23 until November 10 2006.
If you are in the area of mobile development then maybe you should look into taking this exam. If I remember correctly, these beta exams are free – so why not give it a go?
The Preparation Guide is available for the Exam at: http://www.microsoft.com/learning/exams/70-540.mspx
Visit http://blogs.msdn.com/jasonlan/ for information on how to sign up.