A few months ago, NI released firmware 2.07 for their MK3 Keyboards. At release time there was full support only for a few DAW and the full support for some others, including FL Studio was announced within the next months.
I already asked Image-line about the full integration. They're waiting to receice the needed MIDI-Scripts from NI to start the implementation into their software.
What are the plannings for adding the full support to FL Studio?