I am working on an application to be presented on a PDA. I shall be supporting multiple PDA's like HP iPaq H5550, Dell Axim X5, Sony Clie PEG-TJ25, Palm Tungsten E etc. Now to make my application identify the PDA from which the request is posted what should I be doing. I do not find any header element that gives me the device type or anything related to the device except the OS being used, the resolution and the user-agent. so, i am in a fix and need some help on getting the device type.

thanx for your help