One of the first things I install on a new work computer is Cygwin.
What's wrong with the install process? It's a pretty much standard "Next, Next, Next" Windows install.

Two things that I do after installation for better integration with the Windows environment is creating /c, /d, etc symlinks to /cygdrive/c, cygdrive/d, etc and making Cygwin's "/home" a symlink to C:\Documents and Settings or C:\Users

Of the the most compelling (for its market) features of the OLPC is its tiny energy consumption, which can even be recharged with a hand crank. Some of these people don't even have an energy outlet at home.
Try that with a 2001 Toshiba Satellite.