Facebook is planning to integrate Facebook Messenger, WhatsApp and its messaging service on Instagram. The move has been confirmed by Mark Zuckerberg, but it isn’t likely before 2020. The plan is for all 3 to remain as stand-alone apps, although they will be linked so messages can travel between the different services. Once complete, it would mean a user on Facebook could communicate with someone who only had a WhatsApp or Instagram account. This currently isn’t possible. Fac