Add a confirmation option to "Exit" and "Clear"
Please, because if you hit them rather than = you lose your calc completely.
There could be an option to turn this off if some people don't like/want it.
N97 RM-505 v 11.0.21 (.235.07) Three UK
N95-8GB (93-02) RM-320 v 30.0.018 Three UK