Usability 
Seattle TV channel 5's mobile site comes in two versions.
By default mobile visitors are redirected to king5.mlnwap.com a mobile site with a homepage weight of 2 MB that includes lots of photos and videos.
There's also a "basic mobile" version at king5.mlnwap.com/basic/ which has smaller and fewer images and no videos. It's homepage is only a 79 KB download.