The only thing I've been able to think of is moving most of the coins out of Mycelium until this is patched.
That's a wise move in all situations. Even after a patch, you still have the possibility of your device being lost or stolen, and then it's just a matter of a brute force search against your PIN.
I treat my mobile wallet like my physical wallet: I keep about $100-$300 in it at a time, and replenish it when I need more. In the physical fiat case, I replenish it by visiting the ATM. In the Bitcoin case, I have paper wallets in my safe at home.