Sangokushi Taisen DS (三国志大戦DS) is a video game for the Nintendo DS from developer Sega. The game utilizes a collectable card game mechanic for gameplay. The game is slated to include Nintendo Wi-fi connectivity.
The game itself is based on the same collectible card arcade game in Japan, Sangokushi Taisen. The game itself is based on version 2 of the arcade version.
I doubt this will ever make it over to the US or the PAL terrotories, but damn it does look fun.
Here's a video of 2 guys doing some VS multiplayer.