Note that DevFest is not BarCamp. All sessions or topics in this DevFest are something hardcore. There are no introduction. If you are programmer, you may join. In case you are not programmer or you are newbie, I recommend to wait for next chance. We may organize next event for you later with loads of softcore topics since the purpose of this event seems to develop something together in 9 hours. In other words, we need real programmer. Someone that can code on his/her own.
DevFest is not hand-on workshop. Googlers will tell us what Google offered to fulfill our needs.
Again, please do not register if you can't come or you can't code. If you code all day all night or your code is your life, register now.
Updated: It seems this is a fast hand-on workshop.