ElecktricForest has published a nice visual chart comparing all of the currently available Windows Phone 7 mobile devices. UPDATE: You can see our more detailed chart here: Windows Phone Handsets Comparison Chart.
The Windows Phones being compared here are:
Dell Venue Pro, HTC HD7, HTC 7 Mozart, HTC 7 Pro, HTC Surround, HTC 7 Trophy, LG Optimus 7, LG Optimus 7Q (Quantum), Samsung Focus and Samsung Omnia 7.
Whats being compared here is:
Width, weight, height, ROM, RAM, Thickness, camera specs, Battery & Screen.
ElektricForest. You can also see our more detailed chart here: Windows Phone Handsets Comparison Chart.
Quite useful to see all these in one image!