Mobile Suit Gundam 00 the one that just launched in Japan at the beginning of October. It's pretty different though...it doesn't feel like Gundam to me...BUT it's also the first Gundam Series I've watched that wasn't dubbed.
I'm sure most who have seen it would agree though, it has a very different feel about it...it seem much more "realistic" in certain areas.
edit: in reponse to stubs, there ARE anime that I would see as
"meant for grownups" but most of the time they seem more "for all ages"
The majority of anime seem to have "storylines" and a continuity of episodes. I see this as more appealing to adults, where American cartoons like Spongebob - typically revolve around toilet humor, bright colors, and little to no continuity.
Edited, Nov 4th 2007 1:31am by Himmelskralle