Well, before you freak out (or continue to freak out), know that SIGG stands behind the research that concludes these linings do NOT leach the BPA into your beverages. This makes me feel a little better, especially since I have never put anything into ours other than water, but I'm still not totally convinced. I don't want any BPA in my world...leaching or non-leaching.
So if you are like me, here are some options. First, determine whether your SIGG bottle was made with the old formula, or the new EcoCare liner. When you bought it is not necessarily an indicator because older bottles are intermingled on the shelves with the new ones. Here is a good picture of how to tell which kind of liner your bottles have. If your bottles have the coppery-colored old liner (the one made with BPA), you can either bring it in to where you bought it to exchange it for a new bottle with the EcoCare lining (Whole Foods assured me they will make the exchanges), or you can send it back to SIGG with a provided shipping label. Here is the link for the instructions from the SIGG site.
If you don't even want to deal with SIGG anymore (boo hoo, they are my favorite!) some other retailers are offering deals. Here is one that offers 30% off their stainless steel bottle options when you send in your SIGG to be recycled. They also offer 20% off these bottles even if you don't have an old SIGG to turn in! Pretty cool.
Whatever route you decide to go, please keep drinking from safe, reusable bottles and join me in the boycott of bottled water! Take your cool, pretty bottle with you everywhere so you never need to buy silly plastic water bottles (that cost a relative fortune and damage our planet in many ways)...and if a friend offers one to you at their house, you can pull your bottle out of you purse and say, "No thanks...have you seen my cute new BPA-free SIGG?"