First of all, apologies if this ends up cross-posted.
In case anyone is interested, I've been looking for ages for a nice, simple introduction to Drush that doesn't involve downloading an enormous video file, i.e. something that would work in Instapaper. Eventually I gave up and wrote my own, and I've been using it to educate colleagues who haven't quite understood what Drush can do yet.
You can find the article at: http://www.opc.com.au/web-development/introduction-drush-drupal-power-tool
Comments and feedback welcome - especially if something is misleading or incorrect.
If it's helpful to anyone, please let me know. I'm also thinking of writing something similar for the Features module.

Comments
Good article. You might be
Good article. You might be interested in http://drupal.org/node/1005480
Thanks
Thanks. That definitely does look interesting. I will be keeping an eye on that issue page.