OneNote is an amazing application on any computer, but it especially shines on the Tablet PC. The Ink experience within OneNote has improved considerably since the first beta was released in Office 2003. Most recently, SP1 added a number of changes including customizable pens, the scratch-out gesture, and real eraser support.
OneNote “12” promises even more dramatic improvements in this space. Chris Pratley discussed some of those changes recently, including the hidden UI while inking, the lasso tool, support for pasting Ink, and a page that automatically expands as necessary. Even in its early beta state, the overall experience definitely feels more natural than it has in the past.
When combined with other new features like embedded documents, these improvements are really making a killer Tablet PC application even better.