As part of a worldwide offer, the first 2,000 Partners to take "Exam 74-324: Administering Office 365 for Small Businesses" will be able to take it for free at an Authorised Prometric Testing Center.
You can check out all details on the promotion (including how to register) on Eric Ligman's recent Blog at http://blogs.msdn.com/b/mssmallbiz/archive/2013/01/15/we-re-giving-away-2-000-free-administering-office-365-for-small-businesses-exam-74-324-vouchers-here-s-how-to-get-yours.aspx.
Strictly first come, first served so be quick!
Thanks,
Neil.