Ann: Digital Speaker Development Update, page-5

Most interesting to read how hard it is to package a mems chip. Although I do recall previous announcements where they told us this had been tested and was now a formality? They may have jumped the gun there!
This may be reading to much into it... but It would also appear that since they can now refine the chip in a "virtual setting"..... they have produced an updated version, and had it fabricated. This we can expect to have a much greater yield. Exciting times!