Mostly OT: as a somebody who programs computers I dont enjoy the word 'coder'. For me personally it has the mental connotation of somebody who is just there to 'code' it up, who is given a spec from above to implement, somebody who doesn't need to have any creativity to do his part of the software assembly line. I much prefer the titles 'programmer' or 'sw engineer' because they corelate with problem solving and creativity. Those are two traits without which a technical cofounder that's just a coder will probably be of less use.