Thanks for letting me know re transifex request - for some reason they notify me by email a day or two later. All accepted and should be ready.
* Do you use server in Linux? If so, then I have to expose map downloading via command line options. Otherwise, its impossible to use it right now.
* On Linux side of things, there is a lot to be done on the backend libraries - libosmscout and geocoder. Its probably easier to start work on libosmscout since its a bigger community with different OS support and more help on the lists. geocoder though is a small code base, but it maybe not as well documented.