Ubuntu is open source, so I wonder what is stopping Samsung and the rest to built a phone for this OS
Did you guys not read the article or watch the video?
This is exactly what they want, they are hoping to get other companies to build the hardware. The edge is more a proof of concept project which will have a limited production run and hoping most of the uptake will be by developers/software companies and the phone will become a testing ground for new apps and technologies. They clearly said they are not trying to enter the hardware market & would like other companies to get on board in building the hardware for future devices. Right now this project is aimed at geeks and not your average consumer.