According to Dailytech, SmallNetBuildet while analyzing 802.11n draft 2.0-based devices might have discovered a problem which could prevent the final validation of this draft.
The issue is linked to the ability of draft 2.0-based devices to use simultaneously several frequencies and in some conditions it will interfere with other peripherals or devices, something of course forbidden.
So, one will most likely only need to update the function in charge of frequency usage to make it more friendly towards other peripherals or devices.
[translation by Linathael]