Plan for today:

Following my updated blog post:

    http://sagemath.blogspot.com/2010/10/revision-control-and-sage.html

1. Handout and go over next homework assignment, which is oriented
toward getting you started with your final projects. 

2. Discuss project hosting sites. 

3. I will do the hg demo somewhat quickly in front of you, and get
   people to try to use hg for "10 minutes", starting using a clean
   Linux install.  I know we tried before last time, but that only
   convinced me of the extreme importance of this!