Blizzard sprung the Battle.net deadline, free in-game penguin for mergers….

The new and improved Battle.net is still under development at Blizzard, but they’ve now issued a deadline for North American and European users to merge accounts.

World of Warcraft subscribers must merge their accounts with a new Battle.net one, by November 11th in the US and the 12th in Europe. As a thanks, Blizz reward with WoW penguins.

“We’re getting ready to launch the new version of Battle.net, which will include a number of new communication and community features designed to enhance World of Warcraft play, such as cross-realm World of Warcraft chat, cross-game chat (with the launch of StarCraft II), real-life friends lists, and more,” reads the official Blizzard FAQ on the matter.

“After November 12, 2009, you won’t be able to log in to the game unless you merge your account with a Battle.net account. You will need to log in using your Battle.net account username (your email address) and password,” they warn.

The awesome in-game pet penguin will be made available soon for those who have merged, but will be removed as an ability “at some point in the future.” Best do it now.

Here is where you need to start. If you still arent sure you can check out the FAQ or refresh your memory and read the panel discussion recap at this years Blizzcon.