FastScale Composer: Lightweight provisioning of Virtual Data Center

What are the coolest features of this product?

Key innovations of FastScale Composer include:

• Application Blueprint™ – While operating systems support hundreds of thousands of
  applications, any given application only uses a small subset of the operating system. The
  Application Blueprint automatically identifies the precise operating system components an
  application requires at execution time, without any manual effort.
  

• Dynamic Application Bundle™ – Based on the Application Blueprint, FastScale Composer
  automatically builds a small, full-featured software environment including only the precise software
  components required. Averaging only one percent the size of traditional server images, the
  Dynamic Application Bundle (DAB™) is created on-demand at job execution time, so it always
  includes the appropriate updates and patches.
  

• Lightweight Provisioning – With the DAB’s small footprint, provisioning to bare metal servers
  takes seconds, as opposed to an hour or more. The application software stack is small enough to
  run in memory, so diskless configurations are easily supported. When a job is complete, the
  server is available for provisioning of a new DAB – all in under a minute.

Press Release and the Composer itself.