Spotify has reached 2.5 million subscribers, the company says in a blog post. Not a bad feat for a music service that reached America in July this year. The battle for music and mindshare is of course much heated up now that Google has formally joined the fray with the launch of Google Music.

We think Spotify has gotten the business model down pat, and now has to figure out a way how to scale, and scale fast. In the online music business, tomorrow may just be too late when it comes.