First off, Microsoft Project Natal has been renamed to Microsoft Kinect and will be available on 4th November 2010. I am so getting it for my Xbox 360. The rumored price is US$150.
For the Xbox 360 Original, Kinect will connect to your Xbox via a USB cable and a power cable is needed for power (doh!). Whereas for the New Xbox 360, you just need 1 cable (see below).
Official Site: Kinect
Fact Sheet: Kinect (docx)
Source: Microsoft Kinect gets official, Video Chat announced
Xbox 360 Slim
Microsoft also launch the new Xbox 360 which is slimer but personally from the screenshot, I think it looks uglier. It will go on sale from today in the US and priced at US$299
Here is a quote from Engadget:
The new box is crazy sexy in glossy black with touch-sensitive buttons, and Microsoft says it’s “whisper quiet,” with one large fan instead of two — the new 45nm chipset undoubtedly generates less heat to begin with. On the features front, it’s got integrated 2.4GHz 802.11n WiFi, five USB ports, and 250GB of storage on a removable hard drive, although it’s not a standard drive or same drive as the old console, and older Memory Units won’t work, either. Upgraders can use a USB-to-Xbox hard drive connector cable to migrate to the new box, however. There’s also a “custom Kinect port” on the back that looks like an HTC-style ExtUSB port, and it also seems like the power supply has moved inside the case.
Press Page: Xbox E3 Press Page