I was all prepared to take the 071-663 Beta exam but they have cancelled my exam registration. According to the email, I can take the live exam for free. :-)
From: DoNotReply@prometric.com [mailto:DoNotReply@prometric.com]
Sent: Tuesday, December 08, 2009 10:08 AM
Subject: Cancellation Microsoft Beta 071-663
Thank you for your interest in the Microsoft Beta 071-663, PRO: Designing & Deploying Messaging Solutions w/MS Exchange Server 2010, examination. Microsoft authorized a registration cap of 300 registrations for this beta. Unfortunately, your appointment was scheduled beyond this cap and, as a result, needed to be cancelled. Due to this, you may have received an email confirmation of the cancellation.
Microsoft is, however, authorizing one free attempt to take the live examination at no cost to you when it is released next year. You will receive an email within a week which will include a voucher number valid for the 070-663 live examination. Please ensure to save the voucher number for use on your exam. It will be required at the time of registration to receive the exam at no cost.
We appreciate your business and apologize for any inconvenience this may have caused.
You can read the explanation on BornToLearn site: