I know I said I'd be leaving, but I would like to add one more thing I just discovered:
The Google+ Android page just posted some new pictures from the 10/18 (10/19) Hong Kong event and while browsing through some of the pictures I noticed the following...
https://lh5.googleusercontent.com/-.../AAAAAAAABBg/2a-EQ0ApQwU/s720/10-OSQ_4700.JPG
Note the difference in thinness/back design; it seems as if Google had snuck in a side-by-side comparison of the HSPA+ and LTE versions without us even knowing! I thought that was interesting and you can get a pretty good look at the difference (which is not much).
EDIT: Now that I look at it more closely it seems that they may both be the HSPA+ version and I dun goofed. Perhaps it's because the phones are showing different sides, which makes it look different... idk, but I'm starting to think it actually is just showing the HSPA+ version. Well then.