According to ArsTechnia journalist, Ben Kuchera, there’s a strong indication that all Xbox 360’s will begin to have the HDMI port standard. The rumor goes back to E3 where Microsoft announced their special edition Halo Xbox 360 unit. The unit was a traditional premium model with a Halo paintjob and an HDMI port. 
The rumor goes that once all existing inventory is cleared out, you’ll begin to see specially marked boxes of Xbox 360 units on the shelves showing that it comes with an HDMI port. On top of this, these new boxes will be using the cooler running 65NM processors as well as quieter DVD drives. Good news all around!
Update: This is now officially confirmed. All models will begin to have the HDMI port. The HDMI cable is not included in the package, but Microsoft will be offering an “official” HDMI Cable for $49.99 which will include the adapter to split the audio out via Optical. Systems that include the HDMI version will have the HDMI logo on the package. The HDMI models should hit Europe “in a few months.”
