HomePlug Interop Plugfest - Sigma/Coppergate is MIA

HomePlug announced an Interop Plugfest for the vendors of HomePlug AV-IEEE 1901 chips.

• Atheros Communications is  there.
• Gigle Networks is there.
• SPiDCOM Technologies, the latest compliant  HomePlug AV chip vendor,  is  there.

But missing is HAN Fan's favourite MIMO enhancing HomePlug AV chip vendor, Sigma/Coppergate. Surely they would not be late with product for the "10 new customers for their HomePlug AV chip" Sigma's CEO announced during their Q2 earnings conference call.  They must have a great strategy to sell chips that are not shown to the public.