Shay Hassidim, deputy CTO at GigaSpaces, posted an impressive write-up of a benchmark the team ran on Amazon EC2. What's nice about it is that they took a standard web app, in this case the Spring PetClinic, and dropped it into the GigaSpaces container, achieving instant low-latency and scalability, with out-of-the-box load-balancing and fail-over. Extremely cool.
The other components in the app include standard and open source components: Jetty, MySQL, Apache load-balancer, JMeter and Ant.
Also, Shay posts a screen shot (I think it's the first-ever public one) of the new GigaSpaces cloud framework. Check it out: