I just imported a list of a little under 400 listings to test, and they all imported successfully! Yay!
But... since I have the checkbox next to "notify admin of new listings via email" when a new listing is added under Manage Listings > Listings.... a little under 400 emails were sent to me. -_-;; Could you set it so that when importing via CSV, admin notices don't get sent? Hahaha! I'm still getting them... I hope my host doesn't think I'm sending spam.
Also - it would be a great feature if we could mark a listing as published or not via the spreadsheet.