I tried to use this particular card to run Debian as described athttp://www.cyrius.com/debian/kirkwood/sheevaplug/unpack.html
with no luck.
Boot stops with `Bad Magic Number' message:
SDHC found. Card desciption is:
Manufacturer: 0x27, OEM "PH"
Product name: "SD08G", revision 3.0
Serial number: 2952790466
Manufacturing date: 4/2010
CRC: 0x00, b0 = 0
** Unable to read "/uInitrd" from mmc 0:1 **
** Unable to read "/uImage" from mmc 0:1 **
## Booting image at 00800000 ...
Bad Magic Number
Debian runs w/o problems on Patriot 6 class SDHC cards.
Just in case somebody plans to buy LX series card.