While not all that impressed with the iPad from a features standpoint (it does seem to be an oversized iPhone OS), you have to hand it to Apple for creating another revenue model off of its platform. The primary takeaway for me was Jobs defining and claiming ownership of the mobile device market while adding the next generation conduit into that family of products (and playfully ripping the Netbook concept in the process.)
The world used to be your Oyster. Now the world is your Apple: one that connects and collaborates on the move; yet, despite the connectivity, can be paradoxically extreme in its isolation. That ability to be remote, yet remain fluid and productive (not to mention entertained), with all of the content and functionality that is keenly addressed by Apple in its innovation trajectory, will have a profound impact on individual capacity to engage and produce. The enterprise will not lag far behind.
The iPad may not be anything more than an iPhone on steroids, but it changes the game nonetheless.