EA/DICE have just announced on the official Battlefield blog that they will be pushing out a significant update for Battlefield 3. This isn't some minor tweak or fix but will implement a host of changes such as weapons balancing, improved squad control functionality, stability, user interface enhancements, some feature enhancements based on feedback from the community, and the removal of “negative mouse acceleration” that some people have been experiencing. The patch will be released in the coming week for the PC, with the console version to follow after that.
Ubergizmo, Battlefield 3 to receive significant update next week