What kind of products will you be selling? Will you do any server side validation of receipts? Will you keep track of user inventory on the backend or will all of the bookkeeping be done in the client?
A call to iap.restore() will restore any non-consumable items. The iap listener will be invoked with iap.TRANS_STATE_RESTORED for each product that is restored.
Last week we are worked on prepairing to GDC - it is many works with materials and other non game development things.
But we made few interesting things too.
I am finished with performance optimisation. One more achievement is optimize main scene of first world from 160-170 drawcals to 10-12 drawcals. This was made possible by replacing software tint trees to tint and save textures of trees.