"D800 is supported by released Lightroom 4" Tue 06-Mar-12 12:58 PM by Ferguson
Cape Coral, US
For those with a D800 on preorder wondering if you would have Adobe support on arrival or have to switch to NX, LR4 just got released and lists the cameras below as supported. I didn't see a ACR update but since they share so much code one would think it is in the works.
New Camera Support in Lightroom 4.0 •Canon EOS 1D X •Canon PowerShot G1 X •Canon PowerShot S100V •Fuji FinePix F505EXR •Fuji FinePix F605EXR •Fuji FinePix HS30EXR •Fuji FinePix HS33EXR •Fuji FinePix X-S1 •Nikon D4 •Nikon D800 •Nikon D800E