That is a very good question. This part always seems to confuse me a little. Poet is currently working on the Betas. I think I recall 6 to 9 months but possibly more towards 3 to 6 months because the Alpha samples were very close to the customers needs. 

I do not know if both Poet and the customer validate the samples at this point or just the customer prior to production? Either way it shouldn't be too long now. Production is scheduled for early 2nd half.