App is http://mynaweb.com/
I just broke the sign up form so email us if you want in on the beta.
We still have not officially launched but this is a barebones website:
Let me know what you think. You can reach me at
hristo at mainlinenet dot com.
There are in fact so many CDNs around now that at least one seemingly independent comparison site has been created.
Also, these services aren't just blanket across your domain or account - you can configure exactly what content gets what treatment based on literally hundreds of different variables. Furthermore, there are ways of having your origin servers send info to Akamai's edge caches that can then be used to make even smarter decisions, per-request.
I agree with other posters - it's expensive overkill for small sites or sites with modest needs, but for those who need maximum control, reliability and performance, I don't think there's any other company that provides it.