Jarnal is an open-source application for notetaking, sketching, keeping a journal, making a presentation, annotating a document - including pdf - or collaborating using a stylus, mouse or keyboard. It is similar to Microsoft Windows Journal and to the earlier Mimeo whiteboarding and Palm notepad applications. There is also a commercial knockoff of Jarnal called PDF Annotator - for $50 you can enjoy a subset of the capabilities that Jarnal provides for free.
What is new: For the Macintosh Clinton Smith is working on a proper application that can be dragged to your application folder, and will enable you to open jarnal by double-clicking on pdf files and so forth. The test version is now available. Let me know of an problems.
Cool Stuff (via Joe Tonge): A place on the web where you can generate all sorts of nice pdf Graph Paper.
Credits: Mark Stephens and jpedal.org for their excellent support for rendering PDF; Bruno Lowage, Paulo Soares and iText for their excellent support producing PDF.
The Wishlist: Things that Jarnal doesn't currently do in somwhat order of priority
* Add more graphical export formats besides jpg and pdf.
* Show the Accelerator keys on the menu.
* Variable width textboxes that grow as you type so that they you can stick several on the same line
* Resizing inserted images uses the Text function; allow resizing of images through selecting the image
* Copy html text and pictures from external applications into Jarnal. (The other way works if you use at least Java 1.5.)
* Improved/asynchronous operation of the collaboration feature
* Improved tools: add a sticky arrow; put the sticky/non-sticky ruler/arrow tools on the context menu; add an option for making the selection sticky
* Work with digitally signed pdfs
* Allow users to customize menus
* Text rotation
