I love my Lumia 920, but the app selection is terrible. Plus, I really miss the Gmail app. I know the app selection will probably get better on Windows Phone, and I've only had the Lumia for under a month. I just want to be sure I'm making the right decision. Also, I was wondering if it would be a fair trade to go to a GS3? I know the GS3 is older, but value-wise, they are about the same on eBay. Any thoughts?