According to Mahmoud Abbas's PA TV, "Palestine" does not consist solely of two territorities (one controlled by Fatah, the other by Hamas). It is as "big" as--and includes--all of Israel.
If you want to know how big that is, all you have to do is scroll down to bottom of this link and look at the Arafat keffiyeh-chequered logo of Canada's taxpayer-funded (for now?) Palestine House.
And if you can't be bothered to do that, imagine this map bechequered: