1. Well the API is dead (for today at least). It limits the daily access limit to 50 UPC lookups, so it's not going to work in intensive development. Decided to host a local server responding with mockup data previously retrieved instead. The only problem is: whatever UPC number you send to the server, it returns the same data. But it's good enough for development. 

2. Currently, we can spawn the PopUps with a single call to a function in any location in space with any rotation (adjusting itself according to the data retrieved from the server). This should be quite powerful and will get us ready for the next stage, where we turn to point-testing barcodes in a 3D space. I still need to find a free working barcode scanner API that works in Unity. 

3. I was able to get Matthew's plugin working on my Mac. Now the camera moves as the mouse moves. 

4. Need to figure out how to use camera feed as background. 

5. Going on in the long term, I'm more worried about how the UI is actually going to turn out. A Snapchat style design requires swiping, something that requires a bit of work, and the UI just has to look good in general.