A commenter on the post I linked to above weighed in with their opinion on why Apple left out so many seemingly rudimentary features:
You can't put all of these features on the 1st generation iPad because it comes down to two things......smart business and making more money! If they had put all of these features on it then it would have given them limited features for the 2nd generation. Take the iPhone 3G for example. The 3G was capable of everything the 3GS was capable of so why would they leave video camera, voice activation, etc. off? So people will get a sense of buying something new and improved. If the 3G had everything the 3GS had....why would I buy a 3GS? It's called smart business. Yes, you can say that if this doesn't sell then there won't be a 2nd generation iPad but that's highly unlikely. This product has college students written all over it especially having the iBook and iWork apps involved. I'm sure a lot of people would disagree with me on this but I think Apple knows what it's doing.I think Apple is playing with fire. Having very little discretionary income to speak of, there's no way I'm going to spend a dime on something that I know is going to be ten times better and cheaper in a year or two. Innovation is different than "milking it". While Apple is being coy, I sincerely hope some other company is going to sense an opening here and simply give the people what they want. Then Apple will have to react to them.