I'm all in favor of fighting groundless patent infringement claims, but a bit surprised to see so much commentary from Rackspace about a pending legal matter. The normal lawyer response would be "we don't comment on pending litigation."
It could also be an attempt to get Google juice for anyone else looking for info on these jokers.
It's not that. Schoenbaum (who is General Counsel) has been largely focused on this for Rackspace in DC for a while, and vocal on it over the last year.
http://www.rackspace.com/blog/author-post-list/?articlesbyau...