Is your domain licensed?

Old news in terms of the granting of a patent on subdomains.. new news (afaik)
that theyve now started sending out letters telling folks they need to pay now
for a license:

http://www.theregister.co.uk/content/4/36707.html

Patent:
http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=10&f=G&l=50&co1=AND&d=PG01&s1=Shuster.IN.&s2=Brian.IN.&OS=IN/Shuster+AND+IN/Brian&RS=IN/Shuster+AND+IN/Brian

So, does anything need doing or like New.net and SCO do we just need to laugh at
the futility and stupidity of these people and get back to more boring things?

Steve