Can Lightroom recognize and import gps coordinates from xmp files?

Hello guys

i have LR 4.2 and using Lion with a MBP.

I recently got gps4cam for my iphone to record gps coordinates.

Unfortunately i imported all the pix of my vacation to LR instead of importing them with the gp24cam app first

so Now i have the xmp files with gps coordinates in a separate file for each photo, but LR even though ca see that file, does not import any of the info on it

Is there a way to force LR to read and recognize those gps coordinates without having to delete all the pix of my vacation from LR, and re-import them to my mac before with the gps4cam app and afterwards import em in LR.?

i mean i cant believe there is not way to do that...

y LR can read and recognize gps coordinates if are on a picture, but cant recognize and attach those same coordinate to the original fine if they are in a separate xmp file?

thanks for your input guys

matteo