Useful Links

Links to useful external mobile web resources.

Carrier Resources

Docomo Net
The official and best source of i-mode documentation in Japan.
Docomo Net Japanese
The Japanese language version of Docomo Net but more comprehensive and up-to-date.
Ezweb Japanese
Ezweb (AU) developer resource.
Softbank Developers Support Site Japanese
Softbank's developer resource.

Manufacturer Resources

Forum Nokia
Documentation and emulators for Nokia mobiles.
Motorola's Motocoder
Documentation and emulators for Motorola mobiles.
Sony Ericsson Developer World
Documentation and emulators for Sony Ericsson mobiles.
Web development for iPhone
Apple Developer Connection resources for iPhone web development.

Web browsers

Openwave Developer Program
Documentation and emulators of their mobile browser.
Openwave Developer Program Japanese
Japanese language version of the Openwave Developer Program but with documentation and emulators specific to Japan.
Opera's mobile documentation
Articles on how to develop mobile content for their browser.

Media tools

3GPP + 3GPP2 + QuickTime
Apple's overview of 3GPP and 3GPP2. They also have documentation on developing 3GPP content with QuickTime and is a jolly good read if you want to learn more about the 3GPP video format.
Adobe's Mobile and Devices Developer Center
Adobe's documentation and tools for developing mobile Flash content including i-mode.

Mailing lists

KEITAI-L
KEITAI-L is the list to join if you are interested in mobile web development, particularly in Japan. My occasional ranting aside, some very smart people post to this list.