Well, according to several of the rumor sites anyway.

Usually with this many sites pick up the story then you know it’s only a matter of time. I for one, have been looking forward to this since the AirPort Extreme went “n”, and it’s the only other device (other than my iPhone) that’s running on “g”. Why would I care? Well, if you run a “g” device on a “n” network it’ll slow down the entire network, thus negating the point of running the “n” network in the first place.

Anyway, here’s a screenshot of the latest slip-up on the Apple Switzerland store, clearly showing the 802.11n in the description

UPDATE: Apple have now officially launched the “n” capable AirPort Express as expected!