But besides the smaller size and added support for Kenict and built in wireless N, the 360s is exactly the same.
Microsoft went with the smaller size to save money. less materials used equals a smaller price point, look at the PS3 slim, much cheaper then its bigger brothers.
Face it, a new console isn't for another couple years. We're more likely to see a HD Wii before we see a new console from either Sony or Microsoft.
I don't know why you're complaining about this, anything that saves someone money (either with the purchase price, or with your power bill), would see that this is a good thing.