Perhaps the most interesting phenomenon to arise from constant connectivity is the “feed.” The feed refers to the ability to instantly share links, thoughts, articles, and pretty much anything else with your friends and connections. LinkedIn was originally designed as a business networking site, but today its home page barely mentions business connections. Instead, it focuses on the various feeds those connections have posted; allowing the user to know what his or her circle of friends and acquaintances is reading, writing or posting. Unlike the MySpace and Facebook iPhone apps, the iPhone version of LinkedIn eschews much of the functionality of the Web-based application, leaving you with only your feeds and list of contacts.
While I was somewhat disappointed with LinkedIn’s lack of features, I was very sad to see that Plaxo (plaxo.com), one of the best online contact managers available, has no presence at all on the iPhone.