Mobile Phone development with XHTML MP and WML

I have been required to design some pages that can be displayed on mobile phones. I have everything working in PHP where older phones get an generic .wml page, and newer phones get a nice colourful .xhtml page.

Now anybody got some decent example of WAP pages. What I am after is some kind of display standard. I notice some places use a bunch on "<" "<<" "^" ">>" ">" type links for navigation.

Also after some examples of colourful xhtml displays where the output is all text, and no use of images.

My code is great, unfortunately my front-end skills at the moment need some motivation. So any useful links anybody has in regards to mobile web pages development would be great.

So far I have been getting info from:
http://www.thozie.de/english/mobileweb/markup/tables.htm
http://www.w3schools.com/wap/default.asp
http://www.zend.com/zend/tut/wap.php
http://www.developershome.com/wap/wml/wmlSendingData.asp
http://www.notepad.co.uk/articles/refsheet_wml_tags_atoz.php
http://www.w3.org/MarkUp/html-spec/html-spec_13.html
http://www.experts-exchange.com/Programming/Wireless_Programming/WAP/
http://webcab.de/wbhhe.xhtml
http://www.forum.nokia.com/main/1,6566,1_1_25_30,00.html