Following political discussions last fall, open data plans in the city of Hamburg are now shaping up.
According to a blog post by a local politician, the following steps are foreseen:

• A data portal for Hamburg to be launched this year (2012)
• More data releases from the treasury department
• The publication of geodata on the announced portal
• Adopting Creative Commons licenses for the data sets to be released.

Hamburg is following other local open data initiatives in cities like Berlin and Munich, and states like Baden-Württemberg.