distributor to "accept" the GPL. IBM says that SCO violated the GPL by denouncing the GPL's validity, and by claiming that the GPL violates the U.S. Constitution, together with copyright, antitrust and export control laws. IBM also claims that SCO's SCOsource program is incompatible with the requirement that redistributions of GPLed works must be free of copyright licensing fees (fees may be charged for the acts of duplication and support). IBM has brought counterclaims alleging that SCO has violated the GPL and breached IBM's copyrights by collecting licensing fees while distributing IBM's copyrighted material. Status of current lawsuits SCO v. IBM On March 7, 2003, SCO filed suit against IBM. Initially this lawsuit was about breach of contract and trade secrets. Later, SCO dropped the trade secrets claim, so the claim is breach of contract. SCO also added a copyright claim related to IBM's continued use of AIX, but not related to Linux. The judge subsequently stated that the SCO Group had indeed made a claim of copyright infringement against IBM regarding Linux. IBM filed multiple counter claims, including charges of both patent violations, which were later dropped, and violation of copyright law. On February 8, 2005, Judge Kimball ruled that IBM's motions for summary judgment were premature but added: Viewed against the backdrop of SCO's plethora of public statements concerning IBM's and others' infringement of SCO's purported copyrights to the UNIX software, it is astonishing that SCO has not offered any competent evidence to create a disputed fact regarding whether IBM has infringed SCO's alleged copyrights through IBM's Linux activities. On June 28, 2006, Judge Brooke Wells granted, in part, IBM's motion to limit SCO's claims and excluded 186 of SCO's 294 items of allegedly misused intellectual property (IBM had challenged 201 of them for various reasons). Wells cited a number of factors including SCO's inability to provide sufficient specificity in these claims: In December 2003, near the beginning of this case, the court ordered SCO to, "identify and state with specificity the source code(s) that SCO is claiming forms the basis of their action against IBM." Even if SCO lacked the code behind methods and concepts at this early stage, SCO could have and should have, at least articulated which methods and concepts formed "the basis of their action against IBM." At a minimum, SCO should have identified the code behind their method and concepts in the final