Gearbox Software's Randy Pitchford has made a surprise announcement on Twitter, revealing that the Mechromancer downloadable content expansion, set to add a fifth playable class to the game, has been prepared a week ahead of schedule, and will be available on October 9th on all platforms.

The timing presumably refers to US Pacific time, as we're already over half way through Oct 9 here in Australia. So for the timezone confused, in Sydney time, that's some time between 5pm today (Tuesday Oct 9) and 5pm tomorrow (Wednesday Oct 10).

So - here's the surprise, Mechromancer for Borderlands 2 is ready about a week earlier than I promised. Oct 9, all platforms. Woo!

The Mechromancer content is supposedly free for pre-order customers, included for season pass customers, and US$10 for everyone else (unsure on Australia tax status).

For more on Borderlands 2, swing by our in-depth review (AusGamers 9.2/10).