Hi there,
Thanks for writing in! Google may be able to see the duplicated contents, however, it should be smart enough to see the difference and that it isn’t an attempt to manipulate search rankings. In a way, it is similar to having Print specific CSS or versions that can’t be seen unless you are printing a page, off the web.
I don’t think Google will flag it, or at least we haven’t seen it happen.
If something does come up, please do let us know – thanks!