This, of course, hasn’t stopped wireless peripheral makers from jumping on the 802.11n bandwagon, though that wagon is firmly careening down a hill, at the bottom of which it will
the existing 802.11b standard with its
death ray-like powers. While Draft-N gear (as some manufacturers are calling)
be compatible via firmware upgrade once the final standard is released, the actual levels of interoperability seem to be quite mixed. So if you want the genuine article, be prepared to wait.