I did just check http://obamaphone.net/robots.txt and there is a robots.txt file there. It is minimalistic and uses some tags that are not contained under the original development of the standard. They are as follows:
User-agent: *
Disallow: /wp-admin/
Disallow: /wp-includes/
Much more info is available at: http://googlewebmastercentral.blogspot.com/2008/06/improving-on-robots-exclusion-protocol.html
Doubtless there are several other tags and methods to deal with bots of this nature and to impress control over how they index a given site.
follow the links and read (there are x-robots tags as well as other meta tags that can be used to force a bot’s content to expire).
nuts, I should’ve posted the above to you...