Since Firefox has a portable version, it would be very helpful for me to have Rightload as a portable app too. This way I can use my portable flash disk anywhere in the world and download stuff that I need. There won't be any need to install in a foreign PC that I might not have admin rights to.
It doesn't need to have all the features of the installable version. At least it will allow resuming downloads in my current location that were stopped in another location. This should be quite a hit with those using portable apps.