Some observations...
1. Seatpost diameter is on the low side. That will flex and bounce. This will reduce stress on the frame, though, right?
2. As is typical with these copy folders, the handlepost is too close to the saddle, cockpit too cramped unless you don't mind a short reach. Just mind your knees knocking the bars in tight turning moves. Dahon's Biologic post slopes forwards, solving the reach problem.
3. Short wheelbase. The older Mini was great in this regard having an almost 1000mm base.
4. The Gates belt drive looks geared too low. 70t is not heaps.
5. The "sale"! Ditch that!!