The fact that it'll probably be the least ****ty camera on an android phone. Samsung generally has the best cameras on android phones so it's good that the S 5 will have that larger sensor. The new AF system is a bonus, too.
I have absolutely zero hope for the likes of Sony and HTC in that regard. Not even an iota. Poor software processing and algorithms will mean that the large sensor on the Z2 will be a waste and HTC got away with murder with the **** they tried to pull of with the HTC One.
3310 > 3330 > 6100 > k500i > 6630 > 5700XM > N95 8gb > N81 8gb > Samsung i550 > N79 > 5800XM > iPhone 3gs > HTC Desire > Galaxy S > Nexus S > iPhone 4 > Galaxy S II > HTC Sensation + Xperia Play > iPhone 4s + Galaxy Nexus + Galaxy S III > Lumia 800 + One X > Galaxy Note II + iPhone 5 + Padfone 2 > Xperia Z > One m7 > Xperia Z1 >Nexus 5 > Galaxy S5 > One m8 > Xperia Z2 + G3