I'd love to see more development in the Git GUI space; a GUI really enabled git adoption and comprehension on my team. SourceTree has been my go-to for over a year now and it generally gets the job done, but it can be flakey at times (on Windows) and it seems like Atlassian has taken a hiatus from active development. I hope Atlassian takes up the reins again - this tool is pretty essential for me and I'd be happy to…
I've had the same experience. SourceTree has gotten better since I've started using it, but I frequently get hangs on commits and pushes on one of my machines. So much to the point that I downgraded to an older version of SourceTree.
One of the only things I miss after switching from OSX to Windows last year is Gitbox - http://www.gitboxapp.com/ - it's not free, but for what I do, it really did the trick.
This new desktop version of Github looks a lot better than its predecessor, but I need to play with it more. It does feel a lot more like Gitbox to me than SourceTree.