Cool Printrbot XL laser cut & etched acrylic platform

I saw this on thingiverse today. It looks pretty cool. Has anyone tried this or have any idea how it will work?

http://thingiverse-production.s3.ama...w_featured.jpg

Pretty simple how it works. Just like any other platform. Haven't tried it, but it uses a good concept for a print bed. Printed parts shouldn't stick too much and should easily come off.