Yes, that's normal. As in W2k3, Per User licensing is not enforced in W2k8 (though you still need enough CALs to fulfill the EULA).
But you an now track how many Per User CALs have actually been issued:
Tracking the Issuance of Terminal Services Per User Client Access Licenses
http://technet.microsoft.com/en-us/library/cc771021.aspxhttp://technet.microsoft.com/en-us/library/cc770371(WS.10).aspxTerminal Services Licensing (TS Licensing)