Ah OK, that makes sense about the WPA. I forgot about Nintendo WFC being shut down for certain things though. Most games I play don't really require it, but I would like to download weekly puzzles for the Professor Layton games and play Mario Kart DS online.
My mistake, I meant video chat in Black/White, voice chat is available on all DS systems. That's a shame that DSi enhanced features were never really made available for flash carts. It's not very necessary, most of them are small extras that add little or no gameplay. However I would have found it convenient to have a 4 bar battery in Pokemon Black.