There are way too many Crystal Reports out there in the world and I would love to see more of them converted to Reporting Services. Therein lies the problem. I had heard that Crystal (now BusinessObjects) had blocked companies, like Hitachi, from building converters, because they would be reverse engineering (or using the APIs to reverse engineer) the .rpt files, and that would violate the license agreement.
Microsoft only provides migration guidance, but I see that one company, KTL Solutions, has a conversion product available, and another company, Jeff-Net is offering a $25/report conversion service at rpttordl.com.