Lockcode is Mastermind/Bulls and cows clone with multiple levels of difficulty and a nice UI.
For now it is only available for Harmattan but I plan to port to maemo5 and maybe Symbian. I have already a version running on Blackberry 10 and will publish it next.
Great to know.... Since it is a 100% qml/javascript game and I already have a version w/o meego components making it a "native" package should be quite simple... mostly I want to add close/task switcher buttons and hit the "build" button!
I just recharged my n900 yesterday (after several months), let's see if I can get it and maybe some of my other applications running on it again....