Well I'll be the first one to say I'm glad. Sure, most of the games Ubisoft puts on the DS suck. But they've always been a pretty crappy games company save for a couple series, and they've always been one of the biggest. If Ubisoft helps to reduce the anti-third party stigma on the DS and Wii, more power to them. Other developers have shown that they will put quality games on the two systems and Ubisoft is helping to prove that the games may sell.
The DS is really no more a mass of shovelware than the GBA or the GB before it. This stuff is standard, and some people are just mad that Ubisoft has become successful doing it.