I don't think the lack of LTE is a mistake. Only Verizon has an LTE network that's worth anything right now and it's still not ubiquitous. Most iPhone owners are still on AT&T which just recently started rolling out LTE. Unless there's a mass iPhone owner exodus to Verizon (there won't be), this isn't really going to matter. Obviously, the reason why Apple didn't include LTE is because it would force them to make concessions on battery life or form factor and we both know they'll do neither. Here's a nice article on it from
AnandTech.
I'm currently still on AT&T's unlimited data plan and I don't come close to using 2GB a month. Yeah, I'm still using a Blackberry (insert laugh here), but even if I was using a "real" smartphone, I doubt I'd surpass 2GB. If I ever were to go over the 2GB limit (once I switch to Verizon), an extra GB is only $10 and I really doubt I'd go over 3GB a month. Maybe if I signed up for Spotify Premium and even then, I could probably stay under 2GB.
For most people, the iPhone is a great device that suits their needs. They're not comparing specs and really, it's not just about specs anyway. The latest version of iOS only ever has to run on like 3 hardware configurations though the newest features are only available on the newest piece of hardware (Siri probably won't run on anything but the 4S). Newer versions of the operating system still run well on he older devices despite having dated hardware. As long as it functions, I really don't think it's matters to the general public. My friend at work is still rocking a 3GS and I don't think she's even thinking of upgrading. Things like HD video and GB and LTE don't mean anything to her.
So, yeah, I'm most likely getting the iPhone 4S which is automatically a massive upgrade from my Blackberry Bold 9700. I believe Samsung is holding an event next Tuesday to officially unveil the Nexus Prime but it'd have to blow me away to change my mind. I'd probably use both phones the exact same way but the iPhone is probably the safer bet for my needs. That's just a guess on my part based on what I've read and what I've been told from friends who have had iOS/Android devices for what seems like ages but, in reality, has only been like 2-3 years.