This is a great platform-native application. All presentation code is written for each specific platform. It is the second most-popular download and the second most purchased product in the MySQL online shop. There's a community edition and there's a standard edition of the Workbench. People in the workshop got a 1 year subscription to the commercial, standard edition.
I'm sitting in the room here in MySQL Conference. I'm running a WB 5.1 edition I've built on my MacBook Pro laptop.