Google is your friend..... To save you some trouble just because I am a nice guy.... OS 4 new features
No, it's obvious that apple have withheld that feature, as it can make pancakes and toast, but not waffles
Here are some better links, it shows most if not everything iOS4 gives u and no it does not make cookies AND pancakes at the same time: iOS 4 and your iDevice: What you're getting and iOS 4: List of 100 New Features
this had already been mentionsed, but the only reason the had an A4 in the new iphone is so it could power the toaster.
If the dev of Canabalt is smart - which s/he is undoubtedly - since they made Canabalt - they will make sure that it will play on the 40 phone since sales are already over 600,000, and pre-orders keep getting backed up just so Apple will have adequate numbers....