I havent kept up with Android development much, but have they addressed the simulation and UI building issues (when compared to IOS or Windows Phone development tools)?
> have they addressed the simulation and UI building issues
I don't know what UI building issues you're referring to but the intel based emulators run very quickly and I have no problems using them. Though I still prefer testing directly on hardware, for different form factors that isn't always an option.
I just remember some of my old co-workers who were developing cross-platform mobile apps complaining about how difficult it was to do UI stuff on Android compared to IOS/Winphone. It looks like they have addressed those concerns though