iPhone Ketchup?
"Cupertino is playing catch up, say analysts"
HAHAHAHAHAHAHAHAHA!!!!! ROTFL. Apple does not need to play catch up. They release what works for them as they please. Really, like there is some secret sauce that only Sammy or HTC or LG know about how to slap together a <insert size here> phone and toss it out on the market.
Could it be that Apple wanted to balance screen size, battery life, performance, quality, etc. and then when the time seemed opportune release a large phone? No, they just couldn't figure out how to make one until now and they're playing catch up. Sure.