Maybe it does, but many things have "heralded" developments in computing without enjoying great success in their own right - they've only proved the concept, rather than fully realising the potential.
Personally, I think the iPad's a tinker-toy; a tinker-toy, I might add, that I'm considering buying... but I don't see men, women and children the World over buying hundreds of millions of them, like iPods. Too expensive, and too niche for current market needs.
Put it this way - when I first saw an iPod circa 2002, I thought, "ooh! That's cool... and really useful!". When I saw Steve demo'ing the iPad in the keynote I thought, "mm. Yeah, okay, it's cool, but... how useful?".