Just got this from my local retailer:
http://mysigg.com/bulletin/
We have just been told that SIGG aluminum water bottles produced before mid 2008 contained trace amounts of BPA. Look at the inside of your bottles and if they have a * Shiny copper bronze finish then please bring them in to our store and we will mail them back to sigg and replace them free of charge with a new Sigg bottle that has their new Eco care liner. We apologize for the inconvenience and if you have any questions please stop by the shop or give me a call.
http://mysigg.com/bulletin/
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