I think that 2D is a great addition

From what I have seen, it will be good to have it! It is essential to have this addition.

I would rather see the QB code all working sooner, but since you are doing the work, I cannot really say what should be added when. Naturally, some things will be better added sooner to make the job easier later.

I see a lot of people wanting more new things than the basics however and only you can determine when those additions are necessary and easiest to impliment. You will have to make the decisions, but a fully compatable working version sooner also has it's merits.

Keep up the good work,

Ted