From Kotaku:

The virtual console is doing well at over 10 million downloads since its launch.  He says it’s proof that downloaded games are a possibility for WiiWare developers.  This reinforces the idea that WiiWare is a great way for independent developers to get into the market.

He also mentions that Nintendo is still having trouble keeping up with the demand for the Wii, mostly due to the high (and unexpected) demand through the Summer months.

I hope they, can make enough consoles to get out there and keep up with the demand.  About the WiiWare thing, I can see it going either way.  I think most of us pay for the VC games just to relive the old game experiences of the NES and SNES eras.  I don’t know if the demand for the WiiWare titles will be as high, unless we see some awesome stuff coming out.

Article Here: Iwata Speaks

Full Interview Here: GameSpot Interview with Nintendo President