That is a nice looking phone from Sony-Ericsson!
I too am quickly becoming bored with WM (and BB too for that matter). I am considering switching carriers, caving in, and getting iPhones for my wife and I. For one, she would love something simple and stable. Secondly, for all of its minimalism, I kind of like minimalist anymore. The more I customise my phones I find I keep stripping them back down because my devices run so slow the more 3rd party apps I add. So when I break it down, I end up using the bare bones OS (WM or BB) anyway. Which bare bones OS would I like? Probably the iPhone.