Everybody will brag when they do have the highest specs. That's a no brainer.
The difference lies in why you have those specs in the first place. Was it just so you can brag? Or does it actually make the product better?
As an engineer and gadget enthusiast, i've learned that specs are meaningless without context. I've learned that having a 1.3 megapixel phone on my Motorola v710 is worthless when the sensor size is minuscule, and the optics are garbage. I've learned that my mom's Casio 7 megapixel digicam is crap compared to my Fuji F31fd 6 megapixel camera because the Fuji's pixel density is lower.
I know my 3.2 Ghz Pentium 4 is pretty much going to get it's butt kicked by a Core Solo clocked at 2 Ghz. And I know that stopped caring about my mouse's dpi somewhere around 900, as long as the sampling rate is over 2500. And I also know that even running OSX 10.5 and the same universal apps on both a PPC and Intel Mac, the Intel Mac is worthless without at least 2GB of RAM while the PPC will be decent at 1GB because usage of the swapfile incurs a heavier penalty on the Intel compared to the PPC.
Feasibility involves making a decision as to whether or not it's worth it.
LTE versus battery life:
http://www.ibtimes.com/articles/124550/20110318/htc-thunderbolt-review-battery-life.htm
When chipsets improve, Apple will use LTE.
OLED : pixel density, screen door problem, power consumption issues, and color gamut problems (even with the RGBW grid, the W isn't real white because of the way white LEDs are made, and the adding of one more element to the stripe causes other distortions.)
Here's more about the pentile RGBG grid.
http://androidforums.com/android-lo...lcd-vs-qhd-vs-retina-display.html#post2769351
1GB of RAM? : Sure, Apple could add 1GB of ram if they wanted to. But if your platform already performs well on 256megs, it's not like it's a must have. Besides, RAM requires power, so adding more drops standby time. Since the OS kicks sleeping apps out of memory when you're out of memory, and the developers are encouraged to save state to disk, most people wouldn't be able to notice if they came across an iOS device with 1GB of memory.
NFC: No use case most people would care about. I have a NFC phone. The only thing I've done with NFC was turn it off since discovered that the "unknown tag ID" message I kept getting from Google Tags was my credit card. Google Wallet doesn't even support my Nexus S. When Apple thinks of a mindblowingly awesome use case, we'll see NFC on an iPhone.
And so on. Memory cards are harder to explain, but trust me, there's a lot of little details and compromises from the obvious solutions. Even Android has problems with these things.