Yes, but as more intelligent and better-informed individuals would argue, the DS and Wii only had shovelware, not actual support.
For the Wii, most definitely. For the DS, I don't quite agree with that assessment.
Sure, there was some shovelware of some developers trying to cash-in on the Brain Age or Touch Generations brand of gaming or he Imagine series but for the most part, third parties did a pretty good job developing for the DS and created a lot of new content for it. Trauma Center, Phoenix Wright, and 999 are some of the 3rd party offerings that made the DS such a worthwhile system. It is thanks to 3rd parties that established the DS line as an RPG powerhouse which has continued into the 3DS era. Etrian Odyssey, Shin Megami Tensei, The World Ends With You, Radiant Historia, Infinite Space, and Dragon Quest IX are just some of the third party titles that delivered on the DS. There are other games where you mileage may vary when it comes to appeal but Feel The Magic, Scribblenauts, various Harvest Moon and Rune Factory titles, Cooking Mama, Touch Detective, Sonic Rush titles, or MegaMan ZX games all help give the DS a unique identity thanks to 3rd party titles.
The interesting thing about the DS is that although it did get a lot of shovelware (a platform doesn't have over 1800 games on it without a lot of them being shovelware), that shovelware has pretty much faded away or never really did much to harm the console since there was so much worthwhile content on it from Nintendo and 3rd parties unlike the Wii in which all 3rd party support was pretty much considered shovelware and 3rd parties sabotaged themselves with it all. When it comes to the DS, it shouldn't be hard for any gamer to make a list of 100 titles they'd want to own and play. Heck, if time and money were of no concern, I'd think a person could even get up to 150 - 200 games that they'd be willing to try and own. While the majority of those games may not be entries on a greatest games of all times list, they'll probably be good enough or interesting enough to warrant playing or appeal to a person's type of gaming personality.