Web Apps, Usability, and the Mobile User
http://www.dmncommunications.com/weblog/?p=1315

Nesbitt, Scott
DMN Communications
2009

Abstract:

Usability and compatibility testing is a must. If you’re developing a Web application, test it with not only the major desktop browsers but with the popular mobile browsers as well. If your application isn’t friendly to mobile devices, say so up front when someone visits that application using a mobile browser. It will prevent a lot of frustration on the part of users.