Damn...this is what D Link just emailed me few minutes ago:
Dear Rodney,
We would like to inform you that if you have one wireless G standard adapter and one wireless N standard adapter and both are connecting wirelessly to the router at the same time, the wireless connection speed will drop down to the G standard speed on both the adapters.
If the router is set to N standard only, then both the adapters will connect at G standard speed as the the N standard is backward compatible to G. If the router is set to the G + N standard, then also both the adapters will connect at G standard speed.
Thank you for networking with D-Link
This would really be fu**** up if this is true. Would be a super bogus router if there is not a way to use my Brand New 2012 laptop that has wireless N...in the N feature. Really really bogus. My new laptop will be in the same room as the router also.