I didn't vote, but I love my DS. I'm also glad I bought one for the other half.
When I got it just over a year ago, it was a fairly impulse buy, and the games I got were Mario 64 and Wario. I had never played Mario 64, so spent a lot of time on that. Wario was good fun while it lasted.
However, since then I have spent lots of time with it. I spent a lot of time with Yoshi's Touch and Go, over 150 hours on Advance Wars, and have also clocked up a lot of play on Mario Kart DS. In between I cleared Castlevania (didn't like it), and played a lot of Another Code, Meteos, Elektroplankton, and a couple of others.
I think the design is OK. It is cool that is is based on the old G&W games, but the bottom corners do dig into my hands quite a bit during prolonged gaming sessions. I much prefer the Micro for ergonomics, even though it is tiny in my big hands.
Roll on Seiken Densetsu DS / Children of Mana.