Is this a better screen reading option than that which comes pre-installed? Will it function on both my Nexus 4 phone and Nexus 7 tablet? Would this mean 2 separate installs? Thanks heaps for all your advice during this hair tearing period <roflol>! Cheers Andrea --Though no one can go back and make a brand new start, anyone can start from now and make a brand new ending." - Carl Brad