Question: I am working on a photo site and one of more active users asked about pushing content to cell phones. The site is built on django, and I was wondering if anyone knows a **good way of allowing users to download and store content (images) on their cell phones**?

As a side question... is it possible to accept payment for the content via the cell phone or would that have to take place on the site?

Answer: 
I enjoyed [these dot net rocks tv videos by Mark Miller on The Science of a Great User Experience](http://www.dnrtv.com/default.aspx?showNum=112) really got me thinking about good ui:

<http://www.dnrtv.com/default.aspx?showNum=112>

<http://www.dnrtv.com/default.aspx?showNum=123>
Google for HIG. Human Interface Guidelines typically include lots of research into best-practice in user interfaces, and explain in great detail how to design each aspect of a program. Also, have a google for "user-interface hall of shame" or something like that.