There are 3 more things that came to my head:
I read that WP started supporting 1080p, but In my WPAppManifest.xml file where I can select supported resolutions, there is a max of 720p and there's even no choice for 1080p. Is there a way to support 1080p as well? I'm not sure how it would behave when running on a hardware full HD device but when I test the app on 1080p emulator it returns display.pixelHeight = 1280p, so I guess that on the hardware device it would be the same, and it won't load my full HD assets.
Also - how is it with the WP8.0 / 8.1 compatibility of CoronaCards? I'm testing my game on WP 8.1 hardware device and it deploys correctly, but I can see that next to my solution's name it's written "Windows Phone 8.0", so it shouldn't run on 8.1 system... I'm also able to run the game on both 8.1 and 8.0 emulators. Will it run on both systems on hardware devices as well?
Since it's a WP8.0 solution, should I implement a Live Tile for 8.0? On the other hand I'm targeting and testing on the 8.1 device. There's a slight difference in how to do it for 8.0 and 8.1.
Let me know your thoughts, please.