Maybe it's not quarters, but it had something to do with that.  Maybe they just wanted really strong initial sales... Doesn't explain it, though.

If the blog post were still up I could clarify it better.  This link should explain it, but now it takes you to another page.

http://blog.smithmicro.com/2011/08/18/poser-3d/pre-orders-vouchers-redemptions-oh-why/