It indicated it on search results page, but not the product page. From the search page, it let me add it to my cart, but then removed it when I tried to view the cart:
"Nokia N900 has been removed from shopping cart due to quantity limitation/insufficient stock. Some combo items might be affected by this."

It does look like they are scanning in more inventory though, I pre-ordered on the 7th and it would be nice to get the device.