These days we all use 2 way authentication method in which there is lot chances of stealing the passwords etc etc...So for this we can have in addition to 2 way authentication additional voice authentication so that only the designated person voice will be recognized by the software which after proper authtication transfers money,data etc..
We all listen to music and we dance on it...to change a song while dancing is a trouble...in this app user only have to speak the name of the song and the device automatically switches to it by responding to voice..but this voice will be person specific at a time(which we set while initializing the app).....
Voice based dictionary and voice support to invoke applications.
Instant voice translation app combining voice recognition feature on phones and the huge collection of voice pronunciation in dictionary.com or Google Dictionary. Just speak to the phone in foreign language, the app will translate the words on back-end then produce the translated voice output.