Mobile phone capabilities list?

Hi,
In order to develop an interface to send MMS from a Website galery, I'm wondering if a list of the capabilities of the most used portable phones does exist?

In particular, I would like to be able to know the display resolution (ex. 140x140 pixels) for every device.

Does someone know if such a list exists (XML or another format)?

Thank you in advance for your suggestions and help.

Joël.