Status as of the morning of August 13.
The 16GB model is pretty easy to find just about anywhere in Canada, but very few people want it.
The 32GB model WAS listed as a pre-order on FS and BB's Web sites, with expected availability on August 16. Both sites are already sold out, and their Web sites won't take any more orders.
The availability from B&H and J&R in the States is mostly a crapshoot. At this moment, both sites are listing the 32GB model as "in stock", but there's no way to know for sure what's available anymore as availability changes every few minutes, including the 16GB model which is also occasionally listed as "sold out" or "in-store only". Plus, you need to take into account the shipping and brokerage charges, and the cost of returns if your unit is defective.
Shopbot only finds two places in Canada that list the 32GB model, NCIX and Memory Express, both places out of stock, and no date as to when it'll be available again. I'm still waiting for my order at NCIX to be fulfilled, along with a lot of other people.
Google's own Web site still lists both models as "coming Soon."
You do have to give some credit to Google and Asus for their "efficiency." They'll never have to worry about producing too many units!
EDIT: My order has shipped!