Using WhatsApp on a companion device can be slower and less reliable and frequently gets disconnected. But now engineers at Facebook the app’s owner have come up with a system to allow customers to sync up to four devices with their WhatsApp account independently of their phone. WhatsApp is piloting a new system which will allow users to access the app from a number of devices without using their phone. The encrypted messaging service can currently only “mirror” the contents of the app stored on a customer’s phone on one other device at a time. Do you think WhatsApp is likely to dominate he instant messaging services ?