Can I submit my mashup to another contest too?

By jax

I am planning to build a mashup that uses the DayPI. Since a mashup gets data from various data sources, is it legal by terms of the contest if I submit the mashup to another contest too?

Yes, if neither contest rules contradict

You are free to submit your mashup to other developer contests as long as the rules of other contest do not prohibit you from doing so.

-- Vineet