[Sweeden] Oskar Stål has joined Spotify as its new CTO after the departure of the original CTO Andreas Ehn, who left to pursue his own startup. I guess people slightly forget that next year Spotify is actually going to be 4 years old, even though it only launched publicly at the end of last year. (Long time in private beta). Stål comes from the mobile transaction company mBlox , where he's been for the last eight years, growing from a five-person start-up into a global business. By hiring a CTO with deep mobile experience it's clear Spotify sees the mobile as the key supporting plank in its structure. Last night I spoke to a Spotify contact who told me that since they launched the Symbian version of Spotify, the service has "gone crazy." Make of that what you will. Symbian, as a platform used by Nokia's non-smartphones, is of course a great deal more mainstream, especially in Europe, than the iPhone or Android.