Putting the stylus on the bottom seems really stupid. Unless they've massively improved their styluses' sticking power over the Wii U and Old 3DS, that's going to fall out after a few months. I don't know why they keep randomly moving it to every possible location when they already had the perfect location on the DS Lite.
Not a huge fan of moving the Start and Select buttons back over there. I really liked being able to reach one with either thumb (especially since Select always does the same thing as Start in 3DS games). I'll get used to it again, though.
I am a huge fan of the Super Famicom colored face buttons. Hoping the American version either leaves them that way or changes them to the purple and lavender SNES buttons.
I noticed that they even put a little indentation in the hinge above the C-stick to give your thumb enough room up there. That's nice.
Not particularly looking forward to having to buy a MicroSD card that'll fit all the games on my normal sized SD card now. Gonna have to start watching for sales.
Also: Xenoblade is being ported to New 3DS in Japan, and won't work on Old 3DS. (No confirmation of a NA port yet.) So this is looking like it's more Game Boy Color than DSi.
I was going to say I'll have to wait to buy one until they make a purple one, but if we get these faceplates in NA, I guess I won't have an excuse.