Amid all the talk about cloud-based music lockers, such as that reportedly being proposed by Google, there's the nagging question of whether consumers will even go for the idea.

mSpot, a far smaller provider of mobile music services, recently released usage data surrounding its music locker service.

The company says more than 500,000 people have downloaded its music stream app for the Android platform.

The service lets users pay a monthly fee to store their music in mSpot's servers and then stream it to their mobile devices. The first 2GB of storage is free, after which it charges $4 a month for 40 GB. mSpot, however, did not break out how many users are paying for each tier of service. (Update: mSpot now says all 500,000 users are on the free 2 GB tier.)

Still, 500,000 downloads is a good sign. If a relatively small company like mSpot can attract that level of downloading activity on Android - which itself sees less app activity than the iPhone - imagine what a larger, more well-known player could do targeting the app-obsessed iPhone community.