According to the official Aircrack wiki Marvell wifi cards are still not officially supported for injection. However, some googling indicates that that a Marvell chipset is used in the iPhone and there seems to be hints that perhaps there are some experimental versions of drivers that support injection under Linux. However, I can't locate any of the details to these projects.

Does anyone have any insight into the status of Marvell drivers that support injection, official or not.