With student from the University of Rennes in France (Master 2 BIG) we are building a new standalone genom browser similar to IGV.
This one is made using the excellent framework Qt5. That means everything is writted in C++ and compiled under windows, linux and mac. ( Troll: and it's faster and prettier than any java app). The main objective of this application is : "Fast and Cute". We focus on a simple user interface and a powerfull data access based on tabix and bedtools. Me (DrIDK) and ikit , are guiding this project. I am a Qt expert and ikit is an IHM expert from industry. The project is under GPL license hosted on github : https://github.com/BIG-Tools/BigBrowser The project has just started, this is just the beginning .
Be free to join us ! You can code, propose suggestion, find bug, translate ...
If you want to start right now, You can install QtSDK , clone the project and run it from qtcreator by opening src/BigBrowser.pro.
We also have a mailling list : https://groups.google.com/forum/#!forum/bigbrowser if you want to register.
To conclude, Here is a preview of the current state of BigBrowser