After reading through the GPL description, i am still unclear if Tora can be used for commercial? Can anyone advice? Thanks.
From my understanding you can use it. You just can't repackage it and sell it.
The GPL allows both commercial usage and repackaging and selling. The only restriction is that you have to keep any derivitives under the GPL liscence and you also have to make the code available to who ever you sell it to. See http://www.gnu.org/copyleft/gpl.html for more info.