You dont need to be 64bit to have 2GB, & the new iPhone is the iP5S not iP6, it's 64bit, not sure if they doubled the RAM though, can't recall.
The sw/ecosystem experience better be so compelling that it'll be enticing to even the most entrenched Android/iOS/WP/BBX users then.* They've put sooo much emphasis on: They've said very clearly & regularly it'll be approx. a mid-ranged/specced device, but one that's still literally "a high-end experience". And all that still remains as murky as ever, if they're not going to deliver (at all) on hw, they better bloody well deliver there, or I'll visit HQ to give Marc a Chinese burn. *& by that I don't mean the 64k +- nerds that hang-out here, if they're to survive longer-term they'll need to appeal to a FAR wider audience