I just received an Apple Airport Extreme Base Station that I won on eBay. They guy said he had it for only a month and posted a link to apple for the latest Airport Base. It was a gift for him so he doesn't know if it is the NEW "simultaneous dual-band" version. Now I believe that there are 2 kinds of numbers associated with apple products. A part number and a model number. The Part number on Apples sight shows a "MC340LL/A". But no Model Number is shown. The Model Number on the bottom of the Airport Base that I got is "A1143". Can anyone tell me if the one that I got is the most recent Airport Extreme Base? Maybe those of you who just bought the recent Airport Extreme Base can tell me what Model Number shows on the bottom of your router?