At the end of last year, a Google Search update came out that added a "Search with Camera" feature. With Google Search, you could fire up your camera, snap a picture of something, and it would do an image search - it was basically Google Goggles integration. Besides the usual Goggles stuff, it was also really useful for scanning QR codes.
But, a few days ago, when the Search 2.5 update hit, "Search With Camera" got kicked to the curb.
On the left is 2.4, on the right is 2.5. In 2.5, the "Search with camera" menu option is gone, and none of the voice commands work - camera search is completely disabled.