Apple has posted the iOS 4.3 GM (gold master) build 8F190 for iPhone, iPad, and iPod touch on their developer portal. While Apple TV was included in the iOS 4.3 betas, no GM has been posted for it at this time.
Unless there is a show-stopper level bug found in the GM, this is likely the same build that will be released to the public on March 11 alongside the iPad 2 in the US.
For more, see our iOS 4.3 walkthrough and if you spot anything new, let us know!
[developer.apple.com, thanks @CDeeRON!]