Your comment seems to imply that there is already a rich ecosystem of VMs in use, but there aren't really. Basically, there's the Java VM, which is bad for functional languages, and there's Mono, which is not really ideal for Scheme either, nor very popular except that it allows compatibility with .NET.

At any rate, I'm pretty sure PLT Scheme predates both Java and the CLI, so you'd be better off slagging Microsoft for their duplication.