~via BB (wap.pinstack.com)~
Support for the 4gb - 32 gb micro SDHC card is a hardware issue, not a software or OS issue. The only blackberries that support the SDHC standard are 8300s, 8800s, and 8830s. I tested a 4 gb card in an 8830. I had to format the card while it was in the Blackberry but that's normal. It worked fine.