Is there extra space in the clutch cover now that they moved the card? Did they put an antenna in its place?
Is this antenna just for Bluetooth or is is part of a tri-MIMO 802.11n setup? Also, do you happen to know where the other two antennas are located in the display? Are the antennas band-specific (dedicated/separate 2.4 and 5 GHz antennas)? Info could be useful for optimizing reception...