This issue is getting critical as vendors have jumped all over preliminary specs in order to grab sales by touting "802.11n compliancy, " but a mishmash of implementations that don't always play nice together, as well as the questionable ability of Draft 1.0 products to be upgraded to Draft 2.0 (not to mention the final 802.11n draft) with a simple firmware update, is paving a trail of incompatibility and confusion.