GBS: Patent Infringement Claim Against Google Books

Paul Allen’s Interval Licensing has filed an amended complaint in its lawsuit against AOL, Apple. Google, and other companies, alleging infringement of U.S. Patent No. 6,263,507, “BROWSER FOR USE IN NAVIGATING A BODY OF INFORMATION, WITH PARTICULAR APPLICATION TO BROWSING INFORMATION REPRESENTED BY AUDIOVISUAL DATA.” Paragraph 29 alleges that Google Books is one of the infringing products:

Defendant Google operates an automated book classification system as part of its Google Books website and service. When new book information is received by Google, the hardware and software associated with the Google Books classification system indexes and categorizes the book. The categorization is based at least in part on a comparison between the new book information and information related to other books that have been indexed and categorized by Google Books. The hardware and software associated with the book classification system have infringed and continue to infringe at least claims 39, 40, 43, 82, 83 and 86 of the ‘507 patent under 35 U.S.C. § 271.

Is it a creditable possibility?