The link is to a story on CNet's News.com.
Peter and I alluded to the fact that some hardware for 802.11n is already on the market, such as AirLink's "MIMO" parts. These are built to the company's best guess as to what the "n" standard will be, not to the standard itself. This has the potential of causing interoperability problems to kit made to the actual standard.
This new spirit of cooperation is essential to speeding codification and adoption of the standard. When that is done, all products will (in theory) interoperate smoothly as we can spend our money on kit with confidence it will work in all or most situations.