[JohnTHaller]

Sure. Our release of 2048 Portable 2.1 has node-webkit 0.9.2 slimmed down from about 59MB to about 23MB. We'd originally tried packing it to maximum using brute since it's so large for the purpose but found that nrv2e worked best with everything. It's not surprising as we usually recommend that for most purposes. It's the best balance of size, speed, and decreased false positives in antivirus apps (LZMA seems to increase false positives).

You can use our PortableApps.com AppCompactor to compress all DLLs and EXEs in a directory and sub-directories with your choice of UPX levels easily without needing to use the command line on them all. As a bonus, it runs UPX with -t after each compression to test it and ensure it works properly. As always, you'll need to double check that it runs properly as some DLLs don't like being UPX compressed. But node-webkit seems to run quite happily. Grab AppCompactor here: http://portableapps.com/apps/utilities/portableapps.com_appc...

We also experimented a bit with compression level of the .nw file but I can't recall exactly what compression level in 7-Zip we wound up settling on at the moment.