Update2
D-Link and Netgear today announced the first products to receive draft 2.0 802.11n certification from the Wi-Fi Alliance.
D-Link’s DIR-655 Xtreme N Router and DWA-652 Notebook Adapter and Netgear’s RangeMax NEXT Wireless-N Router – Gigabit Edition (WNR854T) and RangeMax NEXT Wireless-N Router (WNR834B) passed the Alliance’s Certification test suite.
Products from other companies, including Linksys and Intel also have received the Wi-Fi Draft 2.0 certification. The official list can be found here.
According to the D-Link release, certification "guarantees interoperability among 11n products, adherence to security protocol and backward compatibility with previous
generations of Wi-Fi gear, including popular 802.11g products".
The products will all be able to display the Wi-Fi CERTIFIED 802.11n draft 2.0 logo.