au by KDDI
In response to docomo's i-mode, KDDI created HDML. Since then, KDDI has adopted support for XHTML basic. According to this article written in 2003, the carrier would be providing a gateway for transcoding between xhtml and hdml. HDML was discontinued at the end of 2011.
- au handsets feature the Openwave UP browser. The supported features used to be documented on openwave's developer site but they've pulled down everything useful...
Carrier dev portal
After the end of HDML, au has opened more galakei documentation. Their development top page: http://www.au.kddi.com/ezfactory/index.html
Content download spec: http://www.au.kddi.com/ezfactory/tec/dlcgi/download_1.html
Handset Specs / Capabilities