Perfect. I have to update the SDK installation chapter to add the use of the virtual machine and the modifications in the latest version of Ubuntu. If you have any questions with the use of the virtual machine ask me.

Hi, we need to be very clear on the terms when talking about UX matters. Pencil is a wireframing/flowcharting tool (which I know very well and often use instead of Balsamiq). Fluid UI is more of a "low-fi prototype demo" service. The two are not interchangeable nor synonimous. @Nic264 I used to work on the core apps project and still have the Balsamiq credentials stored somewhere. The tool is pretty slick (though a little slow at times) and allows for both wireframing and live-testing.

Thank you, very helpful