Hmmm, CurrentC works with my Debit Card or Checking account, Apple Pay works with my credit cards. CurrentC makes me liable for any fraud, Apple Pay leaves my credit card fraud protection in place. CurrentC will be harder to use and give all sorts of info to merchants, Apple Pay is easy and nearly anonymous.
The only way I ever sign up for CurrentC is if the government withdraws cash from circulation and makes CurrentC mandatory. I am not handing over keys to my debit card / checking account to anyone. As it is, I use my debit card sparingly and watch my account closely.
I am sure CurrentC will gain some traction because of WalMart but we'll see. QR codes really caught on, didn't they?