Slimmed Down Xbox 360

In case you didn't get the memo, rumors have been going around about Microsoft's new slimmed down version of the Xbox 360. From the trend of gaming systems I wouldn't doubt these speculations for a second.

A quote from 1UP saying: 

It's not clear what sort of upgrades we might see, but some have suggested it will be a slight upgrade of the current Xbox 360 technology. Current Xbox 360 games would be playable on it, but future games would be able to take advantage of the added muscle. Games played on the more advanced Xbox would look or perform better, but publishers will still be able to support owners of both systems.

 So is it worth buying when it comes out?

--Cface