Always important to be very careful about these things. I just ran across this article from Ziff-Davis zdnet:
Apple's mind-bogglingly greedy and evil license agreement
By Ed Bott | January 19, 2012, 1:32pm PST
Summary: Over the years, I have read hundreds of license agreements, looking for little gotchas and clear descriptions of rights. But I have never, ever seen a legal document like the one Apple has attached to its new iBooks Author program.
Apple's mind-bogglingly greedy and evil license agreement
By Ed Bott | January 19, 2012, 1:32pm PST
Summary: Over the years, I have read hundreds of license agreements, looking for little gotchas and clear descriptions of rights. But I have never, ever seen a legal document like the one Apple has attached to its new iBooks Author program.
http://www.zdnet.com/blog/bott/apples...