Updated - Belkin announced its very own "N900" router.
The Belkin F9K1104 Advance N900 DB Wireless Dual-Band N+ Router is a simultaneous dual-band router with two three-stream N radios each supporting link rates up to 450 Mbps and Gigabit Ethernet WAN and (4) LAN ports.
Belkin Advance N900 DB Wireless Dual-Band N+ Router
Other features include drive and printer sharing via two USB 2.0 ports, "IntelliStream" automatic QoS and hardware-based NAT routing.
The Advance N900 lists for $199.99. Amazon will start taking pre-orders this month and shipments start in April.