Choosing a phone is certainly a big headache for many people, and the fact that there is little standard user interface doesn’t really help. One solution is to read reviews and look over tons of photos that show what the user interface looks like. A better solution is to use Tryphone.com.
The concept is very simple: Tryphone has captured (almost) all the possible screens on a number of phones, and users can play with a virtual phone to see how the interface feels like. Users can click on the virtual phone to go from one screen to another. Finally, widgets are available to embed a virtual phone in web pages.