They were already released in FCC, maybe available in a few months.
http://www.itechnews.net/2010/03/07/...eless-routers/
ASUS RT-N56U:
CPU: RALINK 3662F 500MHZ
http://img176.imageshack.us/img176/2...elessroute.jpg
http://img51.imageshack.us/img51/7606/rtn56u.jpg
ASUS RT-N76U:
http://img222.imageshack.us/img222/3...elessroute.jpg
http://img217.imageshack.us/img217/3...elessroute.jpg
BCM4748 - INTENSI-FI® XLR 2 × 2 IEEE 802.11N 2.4 GHZ + 5 GHZ SOC
http://www.broadcom.com/collateral/pb/4748-PB00-R.pdf