Factbook is being touted as the 'go to' tool for all manner of study, look-up, etc. I am finding this to be true. I have a layout that links the Factbook with my preferred Bible and it is great to have the Factbook follow my navigation and provide links to commentaries, etc. It would be nice to be able to link a factbook tab to a Bible so that you have the same instant syncing with the Bible verse just like the desktop app.
