If your want a bigger audience then one phone operating system then you need to develop a web app. I am working on one now and I am using www.jquerymobile.com. Still in alpha but I expect it to go beta soon. They just announced that the latest build will work with wpm. Of course it will work better when WPM runs IE9.

>I have tested out a silverlight web app and found that it cannot be run ,for instance, from an iphone
>Does naybody know if the same is the case for a WPF based Web app ?
>i.e. is here any point in developing a WPF app if it is going to be accessed via the web from an IPhone ?
>TIA
>Gerard