Good evening! GitHub.com is a public Git repository provider; its declared aim is to facilitate social coding, i.e. to encourage members and even non-members to create their own version of the software (more precisely, source code) hosted there.
I have repositories there. You may reach them under http://github.com/wincentbalin/. PDQt went there too.
Now about the release. Piano is a small music instrument, written in Java ME. There is more information on its wiki page.
Piano MIDlet screenshot