I have just received an email from Microsoft saying that Survivalcraft 1.23 has been accepted into the WP store. It should start appearing on your devices later today or tomorrow. Good times!
If you have trouble using the new electrics, cursedth wrote a nice description of some of the elements on the forums:
He also mentions there’s a bug with the 4-bit counter which produces an overflow signal when going down from F to E, but I can’t reproduce it. Here’s my setup, just after pressing the minus button and counting down from F to E. No overflow, as you can see.