Beautiful new drawing/creative app only for the iPad, Paper by FiftyThree - FiftyThree, Inc. (Free), with an interesting model for making money: free app and then you buy the tools you want to use through in app purchases.

Direct link to video

Each add-on sells for $1.99:

• A soft pencil/sketch tool
• Marker/outline tool
• Ink pen
• Watercolors

Or buy all of them for $7.99.

My own attempt with it reveals the reason why I hired a professional to design my logo: