While the WiiWare SDK is a lot cheaper than previous kits, Ninntendo still has you jump through the hoop of being a registered and licensed developer with a bus

While the WiiWare SDK is a lot cheaper than previous kits, Ninntendo still has you jump through the hoop of being a registered and licensed developer with a business office and a secure facility to store the development kit/hardware. So while it may open the doors to some smaller studios, it's still generally outside of the reach of most "indie" devs compared to the iphone app store.