According to a recent MacRumors posting, Apple might be working on a "next generation" high definition iSight camera. This comes after a reference in the localization strings file for QuickTime shows "iSight HD" as one of the import devices.
You can see the localization strings for "iSight HD" by opening the following file in either QuickLook (space bar) or by opening it in TextEdit: /System/Library/QuickTime/QuickTimeUSBVDCDigitizer.component/Contents/Resources/English.lproj/Localizable.strings
Once you have the file opened, you can clearly see where Apple has placed the following bit of code:
/* Next Generation USB iSight */
"iSight HD" = "iSight HD";
We should note that while this code has been found, it doesn't necessarily mean that Apple will release a new iSight product, but this does give us hope.
[via World of Apple]