AT&T Wireless made available for the development community interest in creating applications for the Windows Mobile Smartphone a set of tools, information and resources that can help the deployment of new applications on this platform.
The web site also list business opportunities, a downloadable Smartphone development guide and tutorial with demonstration on how to access APIs available on this platform.
The web site also lists information for Windows Mobile Pocket PC and Palm OS developers. There are two membership options, one of them is free.