Sources of the famous Ars Technica may have found files that could indicate a possible voice-recognition (really close to the new iPod Shuffle) feature added to the SpringBoard.
The new function’s name will probably be named “Jibbler”, here are the file names that Ars Technica found out:
VSSpeechSynthesizer, VSRecognitionSession, SBVoiceControlDisableHandlerActions, SBSensitiveJibblerEnabled, and SBVoiceControlSoundCompletion
VS would probably stand for “Voice Services” and SB stands for “SpringBoard”. From what we can see, there will be a synthesizer (more commonly known as Text-to-Speech or TTS), Voice Recognition, and a file that will activate Jibbler.