Charles Arthur breaking down the jobs in the app economy in the US alone:
For the job breakdown, it puts iOS at 1.4m (87%), Android at 1.1m (70%), BlackBerry at 107,000 (6%) and Windows Phone/Mobile at 45,000 (3%). Adds up to 166% because some people (two-thirds?) work on multiple ecosystems.
Numbers are according to a study by the progressive policy institute.
Would be interesting to see numbers for Europe.