Not much. We did look at other similar products and found out that there is nothing close to our idea. I asked some of my friends for their opinion and I saw that there are more people who need something like this. We're not big fans of researching, planning and such things. We're more into building real things.
Some basic planning yeah but focusing on building something and then getting feedback seems better for me.
Jason Fried once said "Planning is guessing." ...and I totally believe him. :)
