well, this is annoying:
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=1&f=G&l=50&co1=AND&d=ptxt&s1=6,756,999&OS=6,756,9
will it pose a problem for haiku?
Prior art, would be my guess. I am not a lawyer, though…
http//www.techdirt.com/articles/20040629/0857259_F.shtml