These challenges with a limited time from are perfect! We need more of these for MCU and FPGA based designs too. Arduino is a perfect example platform. Vendors should be happy to show what a designer can do in just a few hours!
I'm curious to see what they come up with. I got a chance to use it for my spinning beachball of doom earlier this week and found it quite easy. I did feel as though the features might have been a bit limited, but it got me though my project without issue!