Plus... it's naive (IMHO) to consider iPad 1.0 as a static target. With the Release Event behind them you can safely bet they are working on rounding out expanded features for iPad 1.x, 2.0, etc. And (reliable or not) as the following AppleInsider article suggests Apple has probably held back additional features and target audiences:
http://www.appleinsider.com/articles/10/01/29/apple_to_targe...
If you try to predict the long-term success of iPad based on 1.0 you just don't get it.