Josh Constine / TechCrunch:

Facebook says it will let developers build competitors to its features on its platform, reversing an earlier policy  —  Facebook will now freely allow developers to build competitors to its features upon its own platform.  Today Facebook announced it will drop Platform Policy section 4.1 which stipulates …

Facebook says it will let developers build competitors to its features on its platform, reversing an earlier policy (Josh Constine/TechCrunch)
Source: Tech Meme