There will be a an option for manual tuning like you tune the frequency of the FM Transmitter or set the time for the alarm. I don't think we'll add +/- signs, as this is a much less used feature than switching between stations (and the buttons for this action will be made much larger).

The use case is as follows: kwotski wants to find and save the stations in his area. He runs auto-scan, auto-scan searches through the whole frequency range and saves stations (using RDS for names). Kwotski then switches between stations using big buttons on the sides, renames stations as needed and deletes stations he doesn't really want.

Swiping is just a toy at this stage, it is imprecise and form over function, but damn it looks good. That's why we are "working around" this toy