myGap is a device for a trainer. It holds all the materials that a trainer has on him/her while they perform a training. Often, there is no formal place to put my stuff near me as we all sit on chairs without table.  My observation is that I, when I give trainings, I am fully involved in the topic, group processes and teaching and forget to take care of those necessary things.. Pens for board drawing, my notes, a pen to make notes on my notes, the time keeper (sometimes the iPhone) end up being distributed all over the room., as I do not pay attention to those in the process. I just use them and put them wherever there is space to free my hands for the next device.
Therefore, myGap is to build something that a) persuases me implicitely to put all those things into this device and b) also travels with or near me, as I need all those things during the training, often one after the other in a few minutes. c) it should be nice looking slim and stylish as I should be happy to have it with me. 
- I do need it personally
- I have more than 5 trainer collegues that I can ask
- it's quite practical and possible to build
- its a physical tool that I would like to build

iPhone 4s, white: I love the form factor of this, small yet large enough display, beautiful in white, simple to use. And useful in a myriad of contexts from navigation to creation and structuring.