Im basing my thoughts on :http://gamrfeed.vgchartz.com/story/81288/2010-year-on-year-sales-and-market-share-update-to-july-31st/
And not the current weeks sales.
I would say that given the current system selling software is in decline and the overall sales are in decline I would have to suggest if nothing substantial changes the Wii is past its peak. Thats not to say that the hardware sales are bad, its just to say that the Wii's overall demand at a lower price is less than the demand it had last year when it was $50 more expensive.
The DS was released late 2004/2005 early and its looking to be replaced just after the hardware sales had peaked in late 2010 and early 2011 depending on the markets, thats 6 years. Now if the Wii doesn't pick up and the decline is terminal then I suspect the Wii will be replaced after only 5 years on the market in late 2011 and or early 2012. I don't believe Nintendo are about to sit on their hands and leave the Wii alone on the market (IF) it is continuing to decline when their best profit maximising option is to release fresh, fast selling hardware with good margins to counter the drop.
Tease.
