Linux to Solaris migration - Why bother ?

Christophher Ratcliff wrote an article about all the these solaris to linux Migration offers.
I think, the sole purpose of this offers is to spread FUD and misinformation. A Solaris/SPARC-customer is not in the opportunity sphere of IBM, as IBM can´t deliver SPARC (besides of some 3rd-party deals). So IBM has to move the customer into reach of it´s business mode. Aa way to do so, is migrating some parts of the infrastructure to x86/Linux. Voila, you have a bridgehead in the customer site. A Solaris/Linux-Migration is not useful for the customer but it´s extraordinary useful for IBM.