I wonder if the device will also be a 802.11n basestation kind of like the Airport Express is a basestation and music streaming relay device. I sure could use an upgrade to my original graphite Airport basestation.
I also read somewhere that devices based on the draft spec of 802.11n may not be compatible with the final spec.
Steve Jobs himself stated the iTV box he showed has Wi-Fi. He did not narrow down which spec probably because he does not discuss details of unreleased products.
But as soon as dual-booters under WinXP of C2D iMacs, MacBooks, MacBook Pros, and MacPros started detecting WORKING 802.11n cards under OS Win XP, it was made clear.
The primary chip supplier for 802.11n is Intel. Therefore Intel can simply do in the future what does not break the past. Other third parties will have to conform to Intel chip details to not break, but considering the domoinant market share of Intel, who wouldn't?
The top three wi-fi chip suppliers have committed to conform to Intel style releases.
So even if n evolves a bit you can expect a "high degree" of backward compatibility. In Macs in particular, these are all insertable cards, so if the unexpected happens you have a $100 upgrade path in any case.
I wonder what Wi-Max stuff will cost?
Rocketman