Are the iPhone and social networks making the classic Web and intranet obsolete?

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Are the iPhone and social networks making the classic Web and intranet obsolete?
There’s been an important and relatively sudden change taking place over the last couple of years in the way that we interact with the Web. While direct access or search activity has been (and still is) the most common way that we access the content and applications of the Web, new ways have been rapidly growing and competing with how we work online, both at home and at work.

Thus these new models, exemplified by social networking sites like Facebook or mobile apps on platforms like the iPhone, Palm’s new webOS, and Android, will ultimately herald a change in the way that we work with our IT systems in the enterprise.

The once relatively unified world of the Internet, with a few major top-level types of access directly connected to it (browser, e-mail, IRC client, newsreader, etc.) and a few key sub-apps such as search that virtually everyone online used have been extended — as well as fragmented — into popular new channels into which users are now rapidly moving en masse.

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