Can someone tell me what this is?

I feel like I'm going to collapse.

Today I was installing a second hdd in my unibody macbook pro 17", and while inserting the new hdd tray I managed to tear off a connection that was soldered to the logic board. To top it off one of the micro pins that was on the connector fell off and I lost it forever.

Now I'd like to know what exactly is this wire that connects to the board (isight?) and if the macbook can function properly without it. Thanks for checking.

Here's an image:

http://img831.imageshack.us/img831/4779/fmlmacbook.jpg

Actually the wire is running around the optical drive, into the "tube" at the junction of the screen and the body, and all over the other side to this larger connector under the grey padding:

http://img716.imageshack.us/img716/9113/fmlmacbook2.jpg

Someone pointed me to that link in another forum.

Installing MacBook Pro 17" Unibody Logic Board Replacement - Page 4 - iFixit

I was now confident enough to leave it unsoldered and boot the macbook, and it turned out to be the onboard camera cable. (Photoboot detect no camera now) I feel kinda good right now.

Case closed, thanks all!

Why would you not fix it? Do you not want the camera functionality?