Windows 7: Windows 7 Ultimate Let me Activate on more than 1 computer?

Further information for those interested:

Description of Windows Genuine Advantage (WGA)

The activation procedure I recount is based on my own experiences activating windows on changed hardware over the years, noting improvements and changes as they occur. Others may have different recent experiences which would be helpful to hear.

I specifically asked a MS Activation agent if the robocall question "How many machines is this copy of Windows 7 installed upon?" is implied authorization to overwrite the hardware signature for that Key in their Servers, and the reply was Yes, explaining that the hardware signature never washes out until it is overwritten.

How often an activated install communicates with the servers to see if it is still activated with that hardware signature is one question I still have.

I've visited there before.

It would feel a bit more up-to-to date if it mentioned desktop versions of Windows newer than XP. Are the limits placed on an invalid OS the same for Windows 7 (or Vista) as for XP or Windows 2000?

This is all I can find on Windows 7: Genuine Windows Help & How-to - Microsoft Windows

Don't forget that even after Windows 7 has been activated, Microsoft carry out validation checks so I suppose the question that must be asked is has validation taken the place of WGA?

WGA will eventually lock you out completely. You won't even be able to login without doing a successful activation.

In the past, WGA and Activation were separate gateposts. Are things different now?