In an audacious move to minimise the risk of mobile social disruption, Facebook is to acquire leading messaging app Whatsapp for up to $19 billion, or $42 per user, or 11% of Facebook’s current market cap

Messaging platforms are becoming the new social media, particularly for younger demographics, and while Facebook/WhatsApp will be huge in mobile, other services could still side-step into Facebook’s territory

The price for WhatsApp may be justifiable to counter the threat, but Facebook has only bought one of many, and paying a full price may encourage the others; expensively buying every competitor does not feel like a long-term strategy

Explosive growth in take-up of smartphones and tablets means that the effective size of the internet will increase by several multiples within the next few years. This transformation in scale comes with a major change in character and operating dynamics, creating new opportunities and revenue streams.

Twitter is unique amongst social apps: it gives new users a blank canvas in which they can (and must) create their own social network reflecting their own interests, hence building an ‘Interest Graph’, but onboarding new users remains a challenge.

Revenue at Twitter is now on a $600 million annual run-rate, scaling rapidly since the introduction of ‘native ads’, and seems set for further growth: the key question is whether it can achieve breakout user growth and mass market scale.