I've been utilizing the dual band on a 66U the past few months with Shibby Tomato 1.28
1.28.0000 MIPSR2-104 K26 USB BT-VPN-64K
Talk more about this, you or anyone, if you will. I run a pair of Asus RT-N16 with Toastman Tomato and have avoided other routers that don't run Tomato. Wasn't aware there was a stable build for the N66U yet.