So far, only 17 Android developers, including Handy Games, Creative Mobile and Pulse, have signed up to make their apps available to run on a Mac.

BBC: Android apps to run on Apple Macs via Bluestacks program

The most successful rivals have been the 7in (17.8cm) Android tablets - in particular the Google Nexus and the Kindle Fire.

BBC: Tablets take centre stage

Among Android users, 48% plan to buy another Android phone next, 34% are undecided and 17% plan to switch to an iPhone.

FORBES: Connect