Tethering Nikon dslr to laptop?

I've seen a lot of info online about tethering dslr cameras to computers. It seems to be mainly for during a photo shoot so that the model can see the photos as they are taken. However all of the info I can seem to find relates to Apple and Canon software. Is there anything like this for Nikons? Specifically for the Nikon D90.

Here are the Nikon dSLR's that can be teathered to Adobe Lightroom 3.6

D3
D3s
D3x
D90
D300
D300s
D700
D5000
D7000

This is an old list, so the Nikon D5100 and new D4, D800 can probably be tethered to Lightroom as well

Nikon Camera Control will tether most of their DSLRs. Kind of expensive.
There are free alternatives out there if you search. From what I saw a year or two ago, the free alternatives weren't working very well.

Most Nikon DSLRs can be tethered. I have been successful with a D90 and Lightroom.

Also almost any camera that uses a SD card can be tethered if you use the appropriate EyeFi card with the software that comes with the card.