I am pretty sure it is perfectly legal, because in #3 of:
https://pyweek.org/s/help/#what-to-do-before-the-challenge-starts
It says:
If you don't have access to Linux, Windows or a Mac to test on, CONTACT FRIENDS, FAMILY OR OTHER COMPETITORS TO FIND SOMEONE WHO IS ABLE TO TEST FOR YOU.
If people outside your team can test your game and it's compatibility then I'm sure you can "get feedback from those outside one's team".
Hope this helps :)
-M0dem
richard on 2014/05/10 22:52:
Absolutely!