Update: Engadget Mobile just got word from AT&T that the MicroCell and it's pricing structure are only in "public trial" at the moment in Charlotte, North Carolina. So sit tight folks as AT&T has "no other announcements to make at this time"

So you say you have horrible AT&T coverage in your home and you are about to leave your beloved carrier? Hold that thought for just one moment as AT&T's 3G MicroCell website just went live with a launch right around the corner. We all knew this was coming when Apple released the carrier file that added MicroCell support for our iPhones. Unfortunately, unless you have AT&T internet or landline service you must pay more, rumored to be $19.99 a month for unlimited use, to have the service you should already expect to have.

This is a great option for those of you stuck with a garbage signal in your home or office but without a doubt this should be a free solution as you already pay good money for the AT&T service. Even Sprint has been known to give their MicroCell away for free to customers who have no other choice but to ditch the carrier for another because of subpar service. Is it possible for AT&T to be just as forgiving?

If you decide to give this a try please let us know how it goes!

[Thanks to everyone who sent this in!]