Bye Whiteboards, Hello Glassboards
I doubt that glassboards are a new concept but something about the Clarus Glassboard website caught my eye (Probably their youtube videos. Scroll down to see those) I love the Glass Stones and the Mobile Express, plus the realization that these would be ghost free! I hate dry-erase board ghosts. Their website says you can use dry/wet-erase pens, permanent markers, and grease pens!