My Nintendo power said something about this... I'll have to find it though. I'll edit this post with it later
EDIT: told ya I would
Q: Should I buy a router/what type of router should I buy
A: A router won't do you any good right now, but if you see a good deal on a
router, you may as well pick it up. The DS uses 802.11 (G or B, there will be
NO speed difference). Then just make sure your router is WIFI enabled.
(Most brands are, but my list of personally confirmed ones are: Microsoft,
Linksys, Belkin, Motorola, D-Link, and Netgear) If your brand is not listed,
you can email me,and I will let you know if it is WIFI enabled.
^ Not from NP, I found at GFAQs
They also said it isn't online and you can't use it to boost range yet, but come mid 2005 possibly.