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Rolf Devegt, senior director of business development at Airgo Networks, argued that the Wi-Fi Alliance should begin 801.11n interoperability testing now to avoid even more delays. "Typically the Wi-Fi Alliance starts interoperability certification after standard ratification, but they should start certification before the standard is ratified, like they did with the 802.11i standard." Devegt predicted that Draft 2.0 of 802.11n will be stable enough to proceed with final ratification in the first half of 2008.