The FAQ (http://msdn.microsoft.com/subscriptions/faq/default.aspx) clarifies things

How many devices can I install the products on?
In general, you can install MSDN software on any number of machines. However:

Only persons with MSDN Subscription licenses can use the software on any of the machines
Some products, such as Windows XP, require product activation, which may limit the number of machines on which you can install software. See the section on Product Activation for more information.
If you are using Office for business purposes, you may only install on one machine.
Many product keys are only effective for 10 activations. An additional product key may be requested by calling MSDN customer service at the numbers listed at MSDN Subscriber Downloads Support.


>Are you sure? What if I've written an application and I want to test how it runs on a network, shouldn't I, the developer who paid for the MSDN subscription, be able to install WinXP on 10 of my own machines and try it? Plus what if I want to learn how to setup a domain controller? You need more than one workstation to try that don't ya? I thought this was 1/2 the reason for buying a MSDN subscription???
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