Jakub Pawlowski has spotted the beta documentation for the next release of JDev, great work Jakub. Best to check it out now, as the URL indicates this is a beta release and the URL may not be there for long.
As Jakub has pointed out, there's a great new calendar component arriving. I remember asking for something like this a year or so ago, and the Oracle Gods have delivered. Great work :-)
Some other things I spotted from a quick scan:
1) Dashboard component
2) Hierarchy Viewer
3) ADF BC - Integrating Service-Enabled Application Modules
4) Whole new manual Desktop Integration Developer's Guide
5) Manual for potentially a new product Oracle Help (at least I hadn't heard of it before)
...and so on... it's worth a stroll through the documentation to check out new features. I'd appreciate if you find any more, to post them as a comment on this blog post please.