------------- MSDN --------------------------

If you are one of the lucky owners of Microsoft MSDN subscribtion and you are working on something which imply testing Terminal Services application mode you might wonder whether or not you can get TS CAL's as part of your MSDN subscribtion. Indeed you can, just follow this simple guidline:

1) Install Windows 2008 or R2 or 2003 or even 2000  (with MSDN key to avoid death after 180 Days)
2) Activate W2008 (you will have to do that once in awhile since MSDN keys need to be reactivated once in a while)
3) Install Roles, TS inclusive
4) Call Microsoft Clearance house (a.k.a when you are in License Server - add TS CAL - activate by Phone - call Clearance house)
5) State your MSDN subscribtion number and what ever information they will ask
6) Request the type of TS CAL you need (W2000, 2003 or 2008)
7) enter the code stated by MS employee

Thats it. So as a valid MSDN subscriber you can call MS Clearance house and request TS CAL for developer purposes and only for them. According to the License agreement you are not allowed to use it in production.

Terminal Services Licensing for MSDN, Microsoft Certified Partner and MSCTEC
Qualified members of the MSDN, Microsoft Certified Partner, and MSCTEC programs may only use the Telephone connection method to install client licenses. You will need to provide your customer identification number (e.g., MSDN Subscriber ID, Microsoft Certified Partner ID) for your program when installing licenses. Client licenses obtained through these programs are bound by the terms of the program's End User License Agreement (EULA).

------------- TechNet Plus --------------------------

If you are a Technet Plus subscriber thats a different story. TS Cal is NOT INCLUDED in TechNet Plus Subscribtion.But you can still use 120 days evalution where you don't need to install the License Server, and after you do you have 90 days to activate it. So plently of time for testing.