Bitwig Studio has an amazing micro tuning module that is incredibly useful and creative. Cubase has something similar - as a midi fx device. Logic also has this capability. There have been a number of requests/ people asking for micro tuning in S1....well, now it has MPE it is completely doable (for MPE instruments)
Studio one already has some midi FX (arpeggiator, chowder) but these have just been left, not updated and nothing new added. The micro tuner would be an amazing addition and would stop me having to do my compositions elsewhere.
Should be very easy to implement.