AT&T has issued a statement advising Samsung Focus owners not to use microSD cards in their devices until such time as Windows Phone 7-certified cards hit the market. This follows reports that customers were being told basically the same thing at AT&T retail locations. As published by Engadget, the full statement reads:
“Windows Phone 7 requires a certified high-speed microSD card for optimal performance. Because the Samsung Focus is expandable via a microSD card, only microSD memory cards certified for Windows Phone 7 should be used. This information is not currently marked on any microSD packaging in market today. As a result, we are advising customers to delay purchasing an external microSD card until the cards identified as “Certified for Windows Phone 7″ are available commercially or in AT&T stores.”
You may recall that we were first tipped to the existence of such cards by a footnote in AT&T’s Focus press release, at which time we surmised that Microsoft would either be co-branding cards or putting a stamp of approval on existing ones. Now it seems as if that statement referred to the latter option, with Redmond apparently gearing up to certify cards that meet an unknown set of specifications. Of course if you ask Microsoft’s Charlie Kindel, all microSD cards are inherently unstable products, so we’re assuming that he won’t be the one allowed to wield power of certification.