Gahiggidy
My aunt & uncle run a Mom & Pop store, "The Gamecube Hut", and sold 80k WiiU within minutes of opening.
WIRELESS NETWORK
With Nintendo DS, you can connect with
a local wireless network of up to 16
players. The wireless range is an
incredible 30 to 100 feet (depending on
circumstances), and multiple players
can play multiplayer games using just
one Nintendo DS game card.
Nintendo DS technology also provides
for a wireless LAN connection, which
could allow a theoretically infinite
number of players to connect at a hot
spot and compete at a central game hub
on the internet, even if they're
thousands of miles apart.
Note that Nintendo DS wireless
communication, including PictoChat, is
not privatge and is not monitored by
Nintendo. We recommend that you
never reveal any personal information
or arrange to meet a stranger.
http://www.nintendods.com/index.jsp
Found that under the "wireless" section.