What recognition-based search apps are there?

When I posed the original question, what I meant to ask was "What recognition-based tools are there that we can use for search?"  

Here's our provisional list so far.  These are all apps (or tools) you can use to recognize objects or signals in the world.  

I've grouped them by sensing mode (that is, how does your query device sense the signal it's going to try and recognize).  When you think about it that way, all of the "image reco" apps go together (they're all variations on image processing) and all of the "audio reco" apps go together.  

What sense modalities are we missing here?  

Obviously, there's no taste reco system (or is there one and I don't know about it??) Wouldn't it be interesting if there were a wine varietal recognition tool.  (Pour a little of your plonk onto your cell phone--have it identify the variety, terrior, and year!)  

Remember--our goal in this is to increase the range of tools we know about that help us be more effective searchers.  

Are there more reco-based search tools that we're missing from this list?  

Search on (for more search tools...)!  

Vision

Google Goggles                      Runs augmented Image search of scene.       

LeafSnap                                  Recognizes deciduous leaves of North American trees.

                                                       

LookTel                                     Money; cans of food. Intended for low vision users to find everyday items.

                                                  

Evernote                                   Part of Evernote does handwritten text recognition.

                                                     

Google Language Translate             

                                               Recognizes hand-written Chinese, Japanese, Arabic, etc.

                                                      

Picasa / iPhoto                         Recos faces from the set of faces you’ve tagged .           

WhatTheFont                            Identifies the font in which a given text is set in an image.

                                                      

IdMyPill                                   Identifies pills by size,shape, color.               

                                                                       

Project Shepherd                      Identifies individual animals out of a tagged collection by
                                                      their particular spot pattern.  Open source project.
                                                      Requires some setup to use. Works for whale sharks, 

                                                      manta rays, etc.  

                                                      

Google Search-By-Image

                                                  Searches for images based on similarity to images on the net.                                                   

ColorID

ColorReader

gPick                                          Identifies a specific region of an image by color name

                                                      (e.g., “teal” or “plum”)

PDFpen Scan+

Tesseract (open source)

Pixter                                         Number of character recog tools.  Point at an image of text and recover the
                                                      the text itself by recognition.  (Which you can then search via Control-F.) 

                                                   

StarChart

StarMap                                     Augmented Reality apps.  Point your phone at a position in the sky and 

                                                     see what's there. 

 Meal Snap                                Analyzes your meal to determine your caloric / health consequence of 

                                                     eating everything on your plate. 

ArtCapture                                 Recognizes "more than 500K" works of art based on cell camera image. 

Audio

Shazam

Soundhound                             Identify pre-recorded music (not live performance)

WeBird                                    Identify bird songs (Android)                                                     

SongTapper                             Recognize (some) popular songs by tapping the rhythm on the space bar

                                                      (It worked rarely for me…)

                                                      

Viggle                                      Identifies TV show you’re watching by recognizing the sound track.

                                                      

Musipedia                               Identify music by whistling (difficult to make work), or playing on
                                                      a keyboard.                                                      

TunePal                                   Identify live performances of Irish Session tunes.

                                                      

                 

GPS / Location sensing

FieldTrip                               Looks for interesting historical sites near your current location

                                                      (US only?)

Rutísima Madre                    Looks for interesting historical sites near your current location

                                                      (Mexico only?)

GeoGoogle                           GPS augmented info.  

                                    

Peaks                                  Mountain peak ID by GPS + camera

                                                      

NokiaCity Lens                     Identify buildings in city by AR on cell phone