Greetings,
I’ve created a NGUI based Minimap system for our game, and I am in the process of turning it into an Asset Store submission. About a week ago I sent an email to assetstore@unity3d.com asking if it is allowed to use the free Unity Tech assets in your own submissions. However, I have yet to receive an answer so I thought I’d post here to see if anyone else knew the answer.
Edit: Resent the email and now it has gotten through, while the first one probably didn’t (which may be the reason they haven’t responded yet :P)