I honestly see no harm in it, but I do like the Wii design more than I like the DS Lite design. I doubt the DS Lite design is actually real, because that article has been released since 2007, and there has never been a single mention of it in recent times.
After all, over the years Nintendo has sold more than just games. They even have sold their own line of glasses, and as the company expands over time - they will, more than likely, explore other areas of the business world. That could include selling cellular devices. They are yet to fail us, so I highly doubt that marketing and selling cell phones under their name would be any less than beneficial to their company.