Nokia has announced the launch of Comes With Music service in which people who buy Nokia mobiles will be able to download and keep as many tracks as they wish from participating music companies over a one-year period. Nokia has already the OVI music service on-line.

This makes Nokia a direct competitor of Apple iTunes that at the moment is the market leader and uses the pay-per-track model. However, it seems that Apple is considering the same busines model of  ”all you can eat” music service.

And now, Sony Ericsson is going to unveil an unlimited music downloading service for its mobile phones.

We are seeing a convergence where mobile phone companies, mobile operators, Internet companies, media companies and software companies are going after the same business. It appears that the Internet music service market is going to be particularly crowded.

Nokia uses Microsoft DRM, Apple uses its own DRM but has recently made available DRM-free songs called iTunes plus. Amazon makes available the songs in mp3 format and are DRM-free. Sony Ericsoon, we do not know yet.