What do you wish you had known before starting up ?
rama_vadakattu: The below may be seem simple but i don't know when i was starting up :(  ................1.Don't go alone atleast partner with one or two similar minded  person .2.Keep run way for atleast 1 to 1/1/2 Year.(nothing auto magically happens)3.More features will not make your product popular.
   Implement few set of features which uniquely  showcases the core idea.These features has to be done very very very well (remarkable).4.Atleast one  mentors in same area.etc..........