Yes - it's true! I found fabric that is a Chalk Board.
I know you've seen the Chalk Board paint.. which is also very cool. But this fabric is so versatile and inexpensive. It was $11 a yard.
You could take an old frame and staple it inside - hang in the kitchen to post your weekly menu.. or in a kids room.. or your sewing room to list all your TO DO list items.. The options are endless!
I haven't decided what I'm going to do with it yet - but to show you, I cut a square and hung it inside this magnetic memo board. It's just in there with magnets (that's why it's not stretched very tight).