OPL really works on Series 60! Thanks to the opl-dev team!
A result is CalBMI Calculate Body-Mass-Index, a small and simple OPL program that calculates your Body-Mass-Index.
Because OPL for Series 60 doesn't support MENU and DIALOG commands yet, the User Interface is very simplified.
When you want to try CalBMI you have to install the Series 60 OPL users package (http://opl-dev.sourceforge.net/oplseries60.html) on your Series 60 phone and copy the file calbmi_020.opo (from calbmi_020.zip) anywhere on the phone. To run CalBMI you need the 'help' of a file manager, like FExplorer (http://www.gosymbian.com; don't forget to donate, if you like this great program). Locate calbmi_020.opo in the file manager and run it. That's all 😉
Bye Martin