Quote - And you will need to buy a new player!!!!.  Imagine each time Hollywood releases a new movie you have to purchase an new DVD player!!!

That probably won't ever happen with CE players.  If someone were to build a rogue player they would probably get into a lot of trouble for it.  And if disabling a key would cause a large number of legitimate players to stop working they probably wouldn't do it either, as the fallout would be too great.

I can actually see them never actually revoking a key over the lifetime of the standard.  And if any key does get revoked it will probably be software for playing HD movies on a PC.  Microsoft has decided it wants to bring HD to the PC.  The content providers said nothing doing unless they can make the PC at secure as proprietary CE devices.  Consumer electronics devices, being completely closed, proprietary systems, are necessarily far more secure than an open platform like the PC.  I say to them take this stuff and shove it.  If that is how you are going to be, I'll use a different device for playing high-definition movies.  Leave my PC alone.

Quote - 1- Vista will require special hardware and will not be compatible with the existent hardware.
The question is, will the hardware fabricants have interest of making a special hardware for Vista?,  and which will be the price in the afirmative case?

That is actually not true.  If it WERE the case it would be Microsoft's suicide note.  Existing hardware will work with Vista - it just won't be allowed to handle certain protected content - and that depends on the content - right now the vast majority of the discs on the market don't even set the ICT (Image Constraint Token) as pretty much all the displays on the market are not HDCP compliant yet).  Vista obeys requirements on what it is and isn't allowed to send over non-HDCP protected interfaces.

If Vista does not run on existing hardware, how are people expected to upgrade?

Quote - You can add other requirement and is that Microsoft must aprove and give a certificate to the fabricant, not all the fabricants will be aproved or will have interest on making the hardware, so you can expect a few available fabricants or even only one.

It has to certify the drivers.  Without the drivers, the hardware is useless anyway.

Quote - The inmediate consequence is that you will have two kinds of harwares for Vista, a special hardware to be used by Vista-US and other hardware much similar or eqaul to the existen one to be used by Vista-not US. This fact will raise even more the price of an US computer able to run Vista.

Again not  the case.  The "special" hardware would be allowed to play certain content at full quality and resolution after establishing (via driver signing) that it would securely handle the protected content.  The "non-special" hardware would not have the data sent to it at all.  (The difference would be the "special" hardware being able to handle the encrypted data and the non-special hardware wouldn't.  Any data sent to the non-special hardware would have to be unencrypted.  Depending on the flags set by the content, it could get that data in reduced qualio)

Vista doesn't need to enforce allowing only certain trusted hardware devices in order to enforce DRM.  The non-trusted devices will not have the capability to decrypt the content.  You would need an HDCP compliant flat panel to display an HDCP-protected movie no matter what platform you were using.  A non-HDCP-compliant display would not be able to decrypt the signal (HDCP requires that protected data sent down the DVI path be encrypted to prevent it from being intercepted).

Any hardware will be able to work with Vista as long as there is a driver for it.  The only question is what Microsoft will allow said driver to do.  (Hardware would effectively only be disabled if there was no working driver available for it.  Completely locking out existing hardware from working at all with the new system would be a very bad business move on Microsoft's part)

I still have no intention of getting Vista anytime soon.