Don't know if you've all seen this yet or not, but this is a great site I just came across...
http://members.shaw.ca/storage_4/hl2story/
http://members.shaw.ca/storage_4/hl2story/
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: this_feature_currently_requires_accessing_site_using_safari
"Good job! Marc Laidlaw pointed this out to me as being pretty darn accurate for the most part."
- Gary McTaggart (Valve)