Designing for mobile devices

Tips for designing your mobile site:
http://woork.blogspot.com/2008/07/tips-to-design-your-site-for-mobile.html

Mobile web design trends:
http://www.smashingmagazine.com/2009/01/13/mobile-web-design-trends-2009/

Gallery of mobile designs:
http://mobile-patterns.com/

Article by Nielsen "Mobile Content is Twice as Difficult":
http://www.useit.com/alertbox/mobile-content-comprehension.html

Mobile web app template:
http://html5boilerplate.com/mobile/