On my 2009 Macbook Pro I was able to connect my card reader to the VM on OSX SL and Lion using VMWare Fusion 3 & 4. On my rMBP I am unable to do this as it does not show up in the list of devices to connect the VM. I am running OSX Lion 10.7.4 and VMWare Fusion 4.1.3 (730298).
Card Reader Details:
Built in SD Card Reader:
Vendor ID: 0x14e4
Device ID: 0x16bc
Subsystem Vendor ID: 0x14e4
Subsystem ID: 0x96bc
Revision: 0x0010
Link Width: x1
Link Speed: 2.5 GT/s