Well, we did it. We setup our own dev server on Linux this morning on CentOS at Linode.com.
So far, we've had only a small issue with a script that produces PDFs (probably a path issue in the script) and we're looking at that. Still need to setup the SSL certificate, but it looks like you'd expect. It's a Filemaker Server. Looks like we have access to OData and we'll be figuring out how that fits in with our methods.
Looking for everyone else's experience with it... thoughts?