Why can't it be interpreted from this article that just be cause hardware exists to support the black and white function of the software that Apple simply feels that the hardware does not support their level of quality expected of the software? Are the people who are complaining about this the same ones who are complaining about not having iOS5 on their iPhone3G models?
Also, all these people arguing why Siri isn't on the iPad... why has nobody brought up the obvious (or maybe not so obvious) fact that Siri requires Apple's servers to function. If it requires servers to work, it has to be connected to the internet for use. The iPad comes in a wifi-only variety, which is not always expected to have an internet connection. If there is no internet connection on the device, then Siri won't work... yeah, we could say "there's a 3g version of the iPad, too"... well then you get into segmenting your own hardware, and this would automatically place a class line between the iPad WiFi and the iPad WiFi+3g which makes no sense...