One thing I'm increasingly conscious of is that I've a lot of demos and toy projects hanging around and the code for most of these isn't readily available. So, I plan to clean these up and put them in 
GitHub so others can explore the code, and reuse it if they see fit.
First up is the code to create a HTML+Javascript clone of Nature's iPhone app, as described in an 
earlier post.
There's a live version of the clone here 
here. and the code is now available from GitHub at 
https://github.com/rdmpage/natureiphone.