We've known that AT&T has been test-marketing free 3G MicroCells to subscribers with particularly awful reception in certain parts of the country since the product launched last year, but as of January 23rd, they're codifying the offer and taking it nationwide. Bottom line: the "top 7.5 percent of 3G wireless customers identified as likely to experience poor in-building coverage at home or in small offices" will be receiving some snail mail with a discount code; bring it into an AT&T store and you'll be offered a gratis MicroCell. There's a catch, though
