I wish you could add words too it -.- I've typed om before and its come up with some stupid suggestions but not on lmaoNo news on release but from playing with a few betas Game Centre makes a return and the ability to turn off spellchecking.
What are the chances of it actually working properly?
3G users with iOS4 issues- do you have 8Gb or 16Gb models?
It's weird, so far I've not heard of anyone with a 16Gb 3G having iOS4 problems. Mine's (well, my girlfriend's now) is a 16Gb, might try updating it.
Do you get fast app switching (save state) on the 3G, or is that counted as a "multitasking" feature?
Also interesting:
http://thenextweb.com/apple/2010/07/27/does-ios4-1-fix-slow-iphone3g-units-yes/
I have a 3G 16Gb and just downgraded tonight to 3.1.2. I was using 4.0.1 and it's just far to slow to respond texting is a nightmare and trying to answer calls just glad there is such a thing as voice mail.

May now be forced to go out and buy an iPhone 4.
All these people who say they'll buy/have bought an iPhone4 because iOS4 was too slow on a 3G are just crazy - if I were to get a new phone now, I just wouldn't buy an iPhone. What's to stop the next iOS update making the iPhone4 unusable? I'd rather buy from a manufacturer that tests software thouroughly and correctly before releasing it!
I completely wiped my g/f's 3G last night, and set it up as new without a backup restore - it seems massively quicker than it was, but no-where near the spead of 3.1.3 - and for all I know, it'll just slow down again once it's been loaded up with emails/apps/msgs like before.
I am
going to be upgrading to a iPhone 4 in few weeks and mould this into my car and use it as a stereo/satnav but all on 3.1.2.