- just what we need
480 px - most popular value of mobile screen width while in landscape mode;
- tells the browser about screen scale value (it also enables the zoom);
1em = 100% ≈ 12pt ≈ 16px (but this is not always true);
- a better way for inserting flash into the page;
Flexible Box Model - the future of responsive design;
- example of how Sencha compresses the images;
you can use the bookmarklet to check the images size using javascript;
There is some sort of UAProfs besides user agent;
Opera Mini transfers all requests through Opera caching server;
XHTML-MP - mobile profile for "old" phones;
- doctype for XHTML-MP;
Your Dashboard - access keys in XHTML-MP;
For correct work of Opera Mini site must use XHTML-MP profile;