I have to agree. I know it's meant to be playful and it pokes fun at the racial epithet. But, while I can't place why exactly, it just grates my ears§.

One more thing. The color choices on the website seem to clash (blue, lighter blue and lime green plus black).

I like the idea behind the product. I can see at least trying it out.

§ (dry-)erase-sheet, white-sheet, (dry-)erase-plane, plain-erase.