There is a bug when you remove the SD Card and insert it right after. You got an error message and you get an infinite loop when you want to launch a game.
I just tested the Gateway Omega too. My Emunand is fully working on 7.1.0-16E. The menu is faster and i only got one little freeze. I can also confirm that E-Shop works and saves from E-Shop titles are still there. Here are some photos i took.