For instance, I don't think this NWJS download will automatically check and install updates like C3 and other modern apps.
The desktop download of C3 never checked for NW.js version updates either. It would have to be an entirely separate parallel update system. Besides, since the previewer uses your own version of NW.js, at least you can update immediately or to any minor or nightly release version, rather than having to wait for us to distribute updates (which is a bottleneck I also wanted to remove).
If it's possible, having a setting that allows opening NW.exe path after Remote Preview is selected would be fantastic.
Currently, browsers cannot launch executables for security reasons.
Also would be handy is additional settings to make testing computer games faster
Have you seen the new remote preview options in the latest beta?