iPod Question for anyone who’s iPod-savvy

I’ve gotten a query from an acquaintance who is non-tech-savvy in the extreme. She has a PC and an iPod. She’s just gotten a second iPod and says she wants to have the same music on both iPods. I do not have an iPod, although I have an iTunes account. As far as I can tell from the FAQs and so on, Apple doesn’t allow you to put the same library, or the same content, on two different iPods.

Can anyone help out with this? I don’t know why my acquaintance wants two iPods with exactly the same playlists, but she does, and she’s all upset. TIA!