I have to agree with xfein on this one. When IBM makes a commitment to a vendor, even if they are unhappy with their decision, it takes a while to turn back. With the quality of Larse equipment, This should be a healthy and prosperous relationship between Larse and IBM. I don't think IBM will be regreting this decision anytime soon -- Larse offers one heck of a product line along with the type of support that is sure to keep them around.
*note - these are my own personal opinions based on experiences with both of the companies.