I was part of a twitter conversation the other day with @penguin and @geekgiant were we discussed how frustrating it is to go to a new service and have you “go-to” username already taken. It seems to me that something like OpenID should have a username registry where you could reserve a username much like you would reserve a domain name. Then any services that work with OpenID would have to query the username registry before allowing someone to pick a username.
I think such a service is becoming more and more desirable. With the rapid rise of Social Media many people have essentially developed brand equity or “self-equity” with their usernames. Think of twitter and all of the ‘twitter-lebrities’. Imagine if someone was able to register @scobelizer or @laughingsquid on the next up and coming social network, there is some equity to be had which may even translate into a monetary transaction for the rightful person to own their identity.