After more than 8 years of activity, the old DS is retiring. It came out on sale +/- at the same time Playstation Portable did. It is the most successful handheld system ever released and will be a mark in the history of portable consoles. Its new doublescreen system (one of them touch) was something new. Playstation took the almost 9 years to implant touchscreens on their consoles (PS Vita), what shows that Nintendo is still the dominant brand in portable gaming market.
I hope Nintendo keeps thriving.