There was recently (Nov 2010) the first annual tiger summit held in Russia which was focused on bringing together representatives from every tiger-containing nation to discuss how to save the populations. They still have the 3,200 population number on their site -http://www.tigersummit.ru/eng/index
so it seems at least that things are stable at 3,200 right now. They have full reports from every single country that has tigers, discussing the number of tigers they have and what they are going to do to help protect them.
It is a huge help that China is taking a stand against tiger-based medicines. It is of course hard to change an entire culture overnight. Imagine in the US that they suddenly said "all people - do not drink alcohol". People would still find ways to drink alcohol because it was part of what they liked to do. We of course did that experiment in the US and it failed. Hopefully in China their quest to stop tiger medicines will be more successful.
I do have hope because there was a very similar situation with ivory in Africa, and the ivory ban has met with some success. So I hope with time and education that we can have the same success with training people not to crave tiger parts.
I feel the fate of tigers is very dire, so normally this would be very high on my list of causes to support, but I think with this Tiger Summit and the steady focus the countries are now putting on the issue, that it already has momentum. I.e. they are getting millions of dollars, they know what they need to do, and now they have to implement it.
I think there might be other areas where we would have more of an impact with our efforts.