do note that all the 802.11n stuff that are coming out are drafts for the final protocol. Meaning, your 802.11n network card might not work with neighbors because they might have bought their router earlier and some things might be different enough that you wont be able to steal internet
However of course, a firmware updates should fix things
I just read the whole article. Wikipedia has certainly evolved into a fine info site. I never ceased to be amazed at how clever engineers are, regardless of discipline.