It is a vector graphics drawing package.
Simple, fun and intuitive to use, it has been an invaluable resource for me.
I have been DESPERATE to get a copy on my macbook as I use it absolutely constantly on my iPad.
And now I am giving you a chance to win a copy for your mac AND a chance to win a copy for your iPad.
To win, leave a simple comment letting me know whether you want to win the copy for your mac, a copy for your iPad or would be happy with either.
To install it on your mac, you need OS 10.7. So leave a comment and I'll pick two winners a week from now!