It's working for me. When you pull down Lightroom -> About Adobe Photoshop Lightroom 4.1... look at the upper right corner of the splash screen. Does it say "Camera Raw 7.1" under "Version 4.1?"
I wouldn't call it fully compatible since I still can't shoot tethered with LR4.
I get the same error in iphoto that the files could not be read when trying to import. Tried to download the raw update, but it gave me an error. Could it be more card related? This card is pretty new Lexar 64. Images are readable on my pc laptop. I have two sessions more this week and I really want to use my new rmbp to edit. It shows the images in LR just wont let me import.
Yes it says Camera raw 7.1
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codymac - got the raw update to download and it worked! Thanks so much. Let the fun begin!