The Angular team recently started publishing alpha versions of Angular2.
If you want to investigate what Angular2 is offering there are numerous projects and repositories emerging to help.
Here are just a few:
angular2-playground - One of the most complex and in depth applications I've come across so far comes from Sekib Omazic. It offers multiple examples on how components can communicate and how you might structure your application.
ngconf2015demo - On the back of the announcement Angular2 will offer enhancements with TypeScript the Microsoft team demonstrated an example at ng-conf. There's a blog post with lots more useful information.
As you can see the Angular2 ecosystem is quickly growing but it's not too late to help shape the future of the project. If you have any feedback, thoughts or suggestions there's a Gitter room, the issue tracker and the design documentation for reference.
Want to add a project to this post? Submit a pull request to the awesome-angular2 repository or for this markdown file.