[quote name='phoenicks']If it's an access point that you're plugging in to your PC, it shouldn't make a difference what brand or whatever. 802.11b is 802.11b, no matter what it says on the box. All WiFi-capable devices, from your PC to the PSP to the DS to the Wii to the Xbox 360 to the PS3, work under the same WiFi protocols, and if your PSP can connect through it, so can your Wii.
Saying it's PSP or DS friendly is just a way of attracting unwitting consumers to buying the product. It'll work the same way as the official Nintendo one, which will work the same way as a D-Link device, which will work the same way as a Linksys device, which will work the same way as a Kensington device.
If you've got a deal for a $20 device, and it's the cheapest you can find, and it reviews well on the internet sites, go for it![/QUOTE]
I wouldn't go for the absolute cheapest. Look for a WRT54G(L) Linksys router. I have a GL and with a free hacked firmware upgrade, you can turn it into a dangerously powerful little device. See link:
http://lifehacker.com/software/router/hack-attack-turn-your-60-router-into-a-600-router-178132.php
Oh, and it is 100% legal. After the upgrade, your router will be able to handle multiple streams incredibly well. I can play CS:S while running a couple torrents and still maintain a ping below 50, and I can increase the Xmit radius by like 10x or more. I guess if you don't want it for anything besides Wii, go for the 20 dollar one, but you can probably find this one for 30-40.
edit: oh yeah, and my roommate is using it now for his Wii and I'm using it for my 360.