Waiting for Three Stream 802.11n

Over at SmallNetBuilder, Tim Higgins has a post explaining why three stream 802.11n is taking so long to get to market. His bottom line is:

"So if you've been waiting for an N router to get your HD video streamed to that room to which no Ethernet can go, you'll need to keep waiting. Vendors are still trying to drive down cost and drive up performance (especially video) and it seems that it's taking much longer than they thought to get the job properly done."

The idea of three stream 802.11n is by adding more MIMO diversity, you get more reach and raw speed. As Tim points out in his post,  three stream 802.11n is hard to do right and not cheap.