So let me get this straight ...
If I read this right:
"Terracotta is already available on Amazon's EC2 cloud, and under the agreement, Terracotta and Eucalyptus have integrated and tested their software. The open-source Eucalyptus platform is wrapped in APIs based on Amazon's."
So in a nutshell, I not only have to trust my personal corporate security, and my ISP (or other TCP/IP provider), but I also have to trust three other companies with my corporate data? Isn't that FIVE ways to fuck things up? That is not security, no matter how the marketing peons try to spin it ...
In the vernacular, "I don't THINK so!"
I'll continue to roll my own ... one point of failure in any given network that I build is my fault, several points of failure are all my fault, regardless of whose fault it actually is.