While I have been making a big effort to avoid BPA, I have occasionally given in to using canned goods. Sometimes I just have to take a shortcut and open a can of beans or even tomatoes (I know, I know).
I saw a list that is being compiled by the wonderful folks at Organic Grace (which is an excellent place for eco-bedding, by the way). They have been contacting companies directly and asking about BPA usage in cans.
Now, if I must use a can on occasion I'll be better informed to try to find one that is BPA-free.