Uta-ken is a mobile search engine capable of searching for artists and songs titles by using fragments of song lyrics. The search engine is free service. At present, Uta-ken contains around 3,000 searchable titles and Axel Mark plans to expand its song database gradually.
Soon this service will provide download of songs/ringtones/videos which can bring in revenue. I see, Apple-iPhone to dominate in this category of search services.
PS: Google will try to enter this arena via YouTube to cause much disruption . Watch out !!!