Absolute have just launched the new logo for the 2011 Sydney Twestival.

Twestival® (or Twitter Festival) uses social media for social good by connecting communities offline on a single day to highlight a great cause and have a fun event.
Twestival is the largest global grassroots social media fundraising initiative to date. Since 2009, volunteers have raised close to $1.2 million for 137 nonprofits. All local events are organized 100% by volunteers and 100% of all ticket sales and donations go direct to projects.
Twestival was born out of the idea that if cities were able to collaborate on an international scale, but work from a local level, it could have a spectacular impact. Over 200 international cities from Buenos Aires to Bangalore, Seattle to Sydney and Hong Kong to Honolulu have participated in Twestival.