On fall 2011, my college friends and me entered a local hackathon to create a mobile app for Mexico city. At that time we were still students and the event was held on weekdays so the first team that we thought was modified several times due to this. In the end 3 of four members of the original team showed up plus one friend we invited out of panic.
We didn't have enough confidence because most of the participants were experienced IT professionals who entered for leisure or mobile development companies seeking for talent or attention and we were just students who had less than a year working on Android. From our point of view we were under-qualified and we feared to public ridicule.
It was a 2 day hackathon of non-stop work where the result was a totally functional app for routing using public transportation. Everyone was shocked for the amount of work we achieve in 48 hours, mainly because most of the teams had just unfinished prototypes and we had a ready to distribute app.
The next year we participated again, this time the whole team, but it wasn't the same, we had a plain participation. I couldn't help but feeling disappointed and thoughtful of what went wrong. It might be overconfidence or that we were lucky one year before. I am willing to try again sometime in the near future.
The important is that thanks to that one time we won, we got to know to a lot of talented people, got to own a top app, and got the chance to work in a national cool IT company and we helped to fund one of the companies of the first batch of 500startup MX (but that's another story). All of this before our graduation!
This year we graduate so we hope to re-release MetroDF and work in our own projecs.