turning wall into dry erase board

I just saw this on HOW magazine, paint that can be used on walls to turn them into dry erase boards. I think this idea is quite innovative and certainly creative. The act of sustainability and conservation has escaped our generation and perhaps something created like this will give everyone more incentive to be more green-friendly.

However, I don't think this is particularly useful in houses...maybe in the rooms of little toddlers or kids that like to draw. There are too many Stepford moms that worry about their perfectly furnished homes. But nevertheless, this would be perfect for people working in the fields of graphic design/advertising...any career with a creative outlet. Instead of buying tons and tons of blackboards, businesses can think ahead and paint their walls with these special paints and an abundance amount of white space will be available for all employees wishing to get their ideas across.

This smart invention is similar to the blackboard paints that sell at Home Depot and etc. But as cool and fun this seems, I don't know how successful it would be. I think if they targeted toward a specific audience, (for example, businesses working in the creative field/teenagers/parents with small children) it would flourish even more. But I definitely see this more as a novelty, something fun to do with the homes, making it quirky and exciting.