The deadline for countries to submit a non-English film to be considered for nomination passed on October 3. The Academy has not released an official list of all the films submitted, but some of them are listed here.
Of the ones in that list, I've seen:
Caché (a.k.a. Hidden) [Austria];
Adam’s Apples [Denmark];
Mother of Mine [Finland];
Kissed by Winter [Norway]; and
The Death of Mr. Lăzărescu [Romania].
In addition, I might still theoretically catch these others at VIFF:
L’Enfant (a.k.a. The Child) [Belgium];
Viva Cuba! [Cuba];
Paradise Now [Palestine];
Be With Me [Singapore];
The City of the Sun [Slovakia]; and
All Winter Without Fire (a.k.a. A Long Winter Without Fire) [Switzerland].
EDITED TO ADD: (Oct. 14, 2005): I've now seen Play (which I didn't like) and All Winter Without Fire (which I did). Planning to see Paradise Now today, but I'll probably skip L'Enfant since it's a gala and my pass won't be accepted.
Via Oscarwatch.com I came across thefilmexperience.net, which has all kinds of detail on the known submissions for the Foreign-Language Oscar: Afghanistan to Fiji; Finland to Norway; and Palestine to Vietnam.
EDITED TO ADD: I somehow left Fateless [Hungary's submission] out of this post originally. I've seen that, and also Paradise Now, so that makes a total of nine that I've seen from the submissions for the Foreign-Language Oscar. Also I found a discussion of these issues at GoldDerby Forums.