Jeff Clavier has the skinny:

# Public profile: you can now expose elements of your linkedin profile - which is only feasible to people in your network - to all users. Your Public profile URL is http://linkedin.com/in/ACCOUNT_NAME (here is mine). And LinkedIn makes badges available too. # You can now list your blogs and web sites in said profile. # A feature I have been asking for 2+ years: you can now see the people who have recently joined LinkedIn in your rollodex - allowing you to decide who to invite more efficiently. # For users of the Outlook toolbar, the Dashboard functionality gives you a list of people you could add to your address book (because you exchanged an email with them), people who are already on LinkedIn you could connect to, and most interestingly people in your rollodex whose contacts have changed. # In the same toolbar Grab allows you to select someone signature block, and automatically extract signature fields to easily create a new address book record. As this is something that I do multiple times a day, this is proving quite useful - even if results are not 100% perfect.

Here's my public profile. Link up with me if you aren't already.