Well, after I finally said, "Okay, no more upgrading" Apple released an update that I really want. I knew about the phone a WHILE ago due to leaks though, so no surprise.
What I love most is the new screen. 4x the pixel count of the current phone :O
I'm indifferent about the form factor, but the glass back should feel nice.
Not gonna use video chat, but the 5mp camera finally catches it up to other phones. However, I think the image quality is better than most, because MP doesn't matter as much as low image noise, good lens and stuff (not a photographer, so sorry for bad lingo).
Other features I remember off the top of my head:
much better accelerometer
front facing camera
larger antenna (that metal band around the phone
even larger battery
thinner
Oh, A4 processor, same one as in iPad iirc. Probably underclocked though, perhaps not, due to similar res.
What would make this a day one upgrade for me?
Well perhaps a better audio chip, with more settings like a custom equalizer, and the ability to drive higher impedance headphones.
What is stopping me? Well, apparently AT&T no longer has the unlimited data plan. Only a 200mb for $15, and a 2gb for $25. This is $5 less than unlimited, but I often need my phone for tethering while I travel (jailbroken). I am also a "power user."
So...until AT&T sorts that out, I'll have to stay with my current one.
EDIT: BTW, the Guitar Hero game is pretty great. There's a bug with jailbroken phones that prevents me from buying the dlc tracks though. (bought it legally btw) It goes from really easy, to being harder than any other rhythm games. The strum thing is really fun too. :]