Now following the first release of Angular 2 in May, many developers and teams are beginning to explore the re-written framework due to it's upgrades and benefits within Modules, Mobile Development and Browser Compatibility.
If you want to stay ahead of the curve, check out https://vsavkin.com/ (One of the core Angular2 Developers) , and Reddit User /u/ngFTW 's compiled list of useful GitHub Repos linked below.
Here is a list of Github repositories that are focused on helping others learn Angular2 in conjunction with build systems, bundling, testing, rendering and deployment. Both simple and complex repos are welcome on this list. If you know of a well maintained repo that isn't included here, please link it in the comments. Corrections and other comments are also welcome.