Facebook Custom URLs: Like or disLike?

I recently heard about Facebook announcing that they will soon be allowing users to register usernames and custom URLs for profiles. This will come into effect on June 13th at 12:00 AM EST. This means you will be able to register Facebook.com/username for your profile.

I think this is a great idea, especially for SEO purposes, but for personal profiles it may pose privacy issues and the fact that people with common names such as mine, will be competing with trying to be the one and only (for example) Facebook.com/JaneDoe. There is also the idea that competing brands will take other brand names just to keep it out of their hands, which would eventually lead to complaints for Facebook to deal with.

So there are definitely pros and cons, but it really isn’t that much different from Twitter or MySpace, which already offer custom vanity URLs.

What do you think? Like this or dislike? Will you be waiting at your computer on June 13 so you can make sure no one else can get your name?