NewWorldMan is correct - see the installation instructions at:

http://pytools.codeplex.com/wikipage?title=Installation%20-%20details 

1. click to download the free Integrated Shell

2. click to download PTVS

and you have a virtual "Visual Python 2010 Express" edition.

PTVS isn't "in the box", but this enables us to release much more frequently.

Cheers.