Are you planning on utilizing the free exam code for the 70-656 exam that Trika posted to her blog? If you do, you'll want to book quickly as the free voucher is only available to the first 500 people.
If you are going to write the exam, check out Garth's post about free E-learning courses that Microsoft has out. The one which will help you prepare for this exam is Clinic 6335- Exploring Microsoft Application Virtualization.
Free exam voucher, free training, doesn't get much easier to get certified.