Microsoft Distributed Cache - Velocity

"Velocity" is a distributed in-memory caching platform for building scalable, high-performance enterprise and web data-driven applications. Read More...

Microsoft's "Velocity" is very much similar to memcached (pronounced mem-kash-dee), but Microsoft's "Velocity" has nothing to do with The Apache Velocity Project which is an open-source Java templating platform.

I recommend all scalability, availability, and performance lovers give Velocity CTP1 a test drive.