Less than a week after Microsoft released an update to their (expensive) wireless adapter, adding wireless N technology, Mad Catz is releasing their own Wireless-N Gaming Adapter for Xbox 360. Microsoft's device comes with a $99.99 MSRP, whereas Mad Catz comes in at $79.99.
At least that's according to the press release that just came in. The release says the adapter is available on the Mad Catz online store, but I can't seem to find it. I've reached out to Mad Catz to see if the release is legit, but if it is, it's a good alternative to Microsoft's official adapter, at least if you're looking for a $20 discount.