I do like the feel and design of the 3G model better (much easier to tell if it's silenced in your pocket), but on multiple occasions, the switch on my 3GS has

I do like the feel and design of the 3G model better (much easier to tell if it's silenced in your pocket), but on multiple occasions, the switch on my 3GS has switched from silenced to not. The new one seems a lot less prone to that.