Nintendo has unveiled a wireless router/bridge for sale (in Japan) that works to connect your Wii, DS and/or PC to the Internet.
Famitsu (linked above) has more picss of it, including a router/bridge switch. The router costs you ¥5,800 (US $53). No word on a release outside of Japan, although the Wi-Fi USB Connector has reportedly been discontinued, so it'd make sense to have this as a replacement.
The Wi-Fi Network Adaptor will be available via Nintendo Japan's Web site on September 18.
This appears to be good news for less tech-savvy folks, for which a majority of Nintendo's userbase generally consists of... although almost every standard router available works with both systems already. More PlayStation 3 News...