Some news from the official BF3 blog, we have the first patch for the game coming up. Which will be rolled out to all PC gamers either this, or next week. Console versions will follow shortly after.
A quote from their blogpost:
"So what’s in the PC patch? You’ll see improved polish, stability, weapons balancing, squad control functionality, user interface enhancements, and several feature enhancements that address feedback the community has provided to date – plus we’re removing the so called “negative mouse acceleration” that some of you have experienced."
No information yet of the size of the patch, but based on BF2 they are never small. I myself haven't had much problems or issues but I know some of you had. Let's hope for some smooth gaming, and swift fragging!