Amazon App Store: I'll be honest, I've perused it a little bit. I do have a couple of thoughts: 1) Unless there is significant price difference between apps in Amazon or Google, I'd probably buy it from Google (no need to check in with a potentially defunct Amazon store when re-installing). And at the cost of most apps, I don't think I'll see a significant cost difference. 2) I've found myself checking daily for the free app, then *purchasing* it. Why? Why not? I don't have to install it right away. I can try it, if I don't like it, uninstall it. If I do like it, it was free .