Over the years, Microsoft has been subject to plenty of claims that it copies other companies, but this one is definitely a first.

Microsoft and ad agency Crispin Porter + Bogusky have been sued over their Windows Phone 7 launch ads by the maker of Cell-R-Derm, a novelty cellular abuse aid. The product is a $13 gag gift that spoofs nicotine patches as a way of passive-aggressively informing friends or significant others that they’re using their mobile phones too much.

Adweek broke the news of the suit earlier today. Here’s a copy of the complaint: PDF, 12 pages.

At issue are the “Really?” ads for Windows Phone 7 that lampoon people who bury their heads in their mobile phones in such settings as the bathroom and the bedroom.

Cellrderm LLC, based in Boca Raton, Fla., alleges that Microsoft’s Windows Phone ads extensively copied Cellrderm’s (significantly lower-budget) ads for its own product. It’s claiming copyright infringement, seeking an injunction against further airing or distribution of the ads, and asking for unspecified monetary damages based on the profits the ads generated.

Here are the ads so you can judge for yourself below, at your own peril …

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