We've added two new bundles (groups of structured data extensions) to v10 -- Person and Phone Numbers. The Person bundle allows you to add a Person -- a name and a company, and probably a job title in the future -- to an entry. The Phone Numbers bundle uses a single extension that lets you add one or more phone numbers, of varying types (work, home, cell, fax, etc.) to an entry.

Both of these bundles are "hcard aware", that is, they will create good looking hCard microformats when added to a post.

We really need to add a "fn" extension, to allow complicated editing of a person's name. Right now it's just an unstructured text field, which really isn't good enough. 

You can see a demo of an entry with Person, Address and Phone Numbers bundles added here.