While I'm sure it will achieve a degree of success, I can't see how a commercial product is going to become the de-facto standard. You only have to look at the

While I'm sure it will achieve a degree of success, I can't see how a commercial product is going to become the de-facto standard. You only have to look at the high cost of the premium Rails hosting companies. A high quality commercial VM is a no-brainer for startups with money to throw at deployment, but this is just one niche of Rails users. For the rest of us, Ruby's upcoming 1.9 VM has almost the same astronomical performance gains as claimed by MagLev, and is completely free and almost runs Rails already.