I've done the same in the past. Went from an OG Droid to the iPhone 4. Still messed with the OG on a daily basis, and will admit that I enjoyed owning the iPhone. What brought me back to Android was the Bionic with its 4.3" screen and LTE speed. I'd consider trying an iPhone 5 but don't like the thought of legacy apps being letterboxed. At this point, i'm toying with the idea of trying a WP8 device. I am a geek, not a fanboy. I like to get a taste of everything out there. So far, the only smartphone OS I honestly detest is BlackBerry OS. Who knows, BBOS 10 could change that. In the end, I could own a device running most any OS and likely be happy with it.