A few days ago, a version including fluid simulation was made available for linux and Os X, and now for windows. You can find it here : [link] (or here[link] for another linux version, or here : [link] for os x )
It still lack a lot of settings, but it's already fun to play with.
And don't forget to look at the intro tutorial [link]
PS: If anyone wants to send some images done with Blender, that (s)he thinks could fit in this group gallery, just send a note with a link to your image. Thanks.