Michael Cote has some good thinking on what a professional might want out of a “platform” for his or her online professional identity.

Some of the ideas include:

• An RSS feed of events in your network
• A JSON or RSS feed of endorsements you could include in your blog.
• the ability to export your profile as PDF or XML.
• support for microformats in the public profile pages.
• support for FOAF for contact lists.
• integration and synchronization across different social networking sites.

We’re heading for a world in which users will no longer tolerate having their profile data locked up in walled gardens. There is something compelling about a site which actively helps users make their profiles available in the places and formats they want to.