Thanks Jordan.
Unfortunately the phone does not let me flash it (Sony Xperia S, Android 4.1.1, API 16, GenyMotion, Host: Ubuntu 13.10 64-bit). As normal, a "File Transfer in Progress..." window appears, then a dialog pops up asking me if I would like to flash it. I click on "Yes", and the "File Transfer in Progress..." window re-appears. Then I get an error like "Oops! Error flashing.". Tried it a couple of times, and same result.
So I gave up and went on to add some contacts. However, when I opened the application, it automatically closed saying "Unfortunately, Contacts has stopped". Same thing happened with "File Manager", "Settings", "Gallery", "WhatsApp", "Browser", etc. I tried restarting phone, but it got stuck in the android splash screen. Re-installing didn't help. Installing another phone ended up with (Virtualbox was unable to assign IP address). Solution: delete ~/.genymobile/Devices/*/* , and re-installing the phone from scratch. Have a running phone, but would like to have ARM and Google Play support.
Any help/workarounds appreciated.