Kind of. At a glance, it's new, commercial and they gloss over the complexities... therefore I'm skeptical it really works as well as they say it does, and is leaning toward my 'untrustworthy as a long term platform' basket. Though they may have great tools, I believe history shows us that open source is the real way to resolve these very reasonable types of architectural concerns.
RightScale's single-cloud offering doesn't seem that great, I'd be really worried about them having multi-cloud support.
I have some ideas around a project for "cloud abstraction" - kind of PaaS-as-a-service (we have to go deeeeeper) - but only some early thoughts right now.
http://assets.rightscale.com/uploads/pdfs/RightScale-Technic...