Care to comment how this compares to (Mozilla) XulRunner ? Well, for one thing, I did not find any decent script to easily package a XulRunner application, so

Care to comment how this compares to (Mozilla) XulRunner ? Well, for one thing, I did not find any decent script to easily package a XulRunner application, so maybe that's a plus point for each, but anything else worthwile (apart from the fact it's based on WebKit) ?