BTW, once this comes out, I'll probably be soliciting buy-ins for a technet sub. One sub for a year and that will get us unlimited installs of 8 (and 7, and Office, blah, blah, blah.)
Each key you make can be used on 10 different machines/activated unlimited times on the same machine. Once the subscription runs out you lose your keys unless you copy them.
Didn't see where you said pro version, I was thinking of the standard one where you dont get enterprise software.No, the enterprise keys can be used unlimited times on unlimited devices. And the keys stay good forever.
edit: There are some items that you can only activate 10 keys of. Things like Win 7 Pro. But who cares when Win 7 Enterprise is unlimited.