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The iPhone platform elegantly solves the design problem of small screens by greatly intensifying the information resolution of each displayed page. Small screens, as on traditional cell phones, show very little information per screen, which in turn leads to deep hierarchies of stacked-up thin information--too often leaving users with "Where am I?" puzzles. Better to have users looking over material adjacent in space rather than stacked in time.

The social web is booming, signing up new users and generating new pieces of unique content at a steady clip. A recurring theme of the social web is "data portability," the ability to change providers without leaving behind accumulated contacts and content. Most nodes of the social web agree data portability is a good thing, but the exact process of authentication, authorization, and transport of a given user and his or her data is still up in the air. In this post I will take a deeper look at the current best practices of the social Web from the point of view of its major data hubs. We will take a detailed look at the right and wrong ways to request user data from social hubs large and small, and outline some action items for developers and business people interested in data portability and interoperability done right.

Gartner analysts at the Gartner Symposium/ITxpo in Las Vegas discussed what they believe will be the most disruptive technologies through 2012. Disruptive technologies are those that force changes in industry models, business processes, vendor types, products and services, as well as the all-important user model. Take a look at this list and tell us whether you think something has been omitted—or just plain doesn't belong. This list is ranked in order from least disruptive to most disruptive.

Who really owns your address book? Many Internet companies - like Google (GOOG, Fortune 500) and Yahoo (YHOO, Fortune 500) - say unequivocally that you do. If you sign up for free e-mail accounts on their services, you're free to take your friends with you and export your contact lists to any service that you like.

But Microsoft (MSFT, Fortune 500), while publicly embracing the idea of openness, has been saying something different behind the scenes. Since last summer, lawyers representing the company have been sending cease-and-desist letters to startups that offer new users the ability to import their Microsoft Hotmail contacts. In a move that Valley guys are deriding as ham-handed, Microsoft is offering a quid pro quo: Third-party sites can access Hotmail contacts if they make Microsoft's instant-messaging client available to their users - for 25 cents per user per year. Then the company says it will waive the fee if the sites make Messenger the exclusive in-network messaging client. Such a deal.

There is a better way, of course - though it remains to be seen whether it will work. A group of companies, aligned under the banner of the DataPortability Workgroup, is trying to craft standards that would make it easy for the data we collect online to move as freely and securely from one website to another as we do. As long as two sites abide by the DataPortability rules, they can effortlessly send anything back and forth between them - data, photos, address books. "It's safe, secure, painless," says Chris Saad, the Aussie who co-founded and chairs the DPW. Hundreds of individuals and several leading companies - including Yahoo, Facebook, Google, and even Microsoft - have signed on to the workgroup, and Saad says he's optimistic that we'll see a system in place later this year.