While the Samsung Focus is supposed to fully support microSD expansion, now comes word that AT&T is telling employees to in turn tell customers not to install the cards just yet until Microsoft issues a “fix”. There has been some chatter about the reliability of cards and perhaps this fix is intended to address those reliability issues. Since customers have to zero out their data and restore everything, this wait is certainly troublesome to say the least. Of course you could throw caution to the wind, install your microSD and then revert back if things get wonky. Either way, you’re going to have to perform a data restore of some kind if you plan on adding a card sometime down the road.
Perhaps along with this fix we’ll get some clarification on what class cards will work properly.