Hi there,
One of the better ways to show the potential to IBM would be to find one of their apps that *does* work under WINE and get it demoed to their management. Although it sounds like some of them are already (internally) using Notes under Linux? Hmm ... I have one or two leads I can try to follow, but it's a sure thing that a "wrapper" company would have more joy getting something to stick, eg. a redhat, mandrake, codeweavers, etc.
Cheers, Geoff