I just got this up on the frontpage actually. Pretty cool. Hope it gets released soon enough. It's a Dashboard app being built by Steven Troughton-Smith. He's the same guy who made the Stacks homebrew. Yay for widgets!
I personally don't use a lot of them on my laptop, but dang, I can't imagine life without those few widgets I do use (Calculator, Dictionary, iStat, and umm, Sudoku. LOL).
Wonder how far this Dashboard for the iPhone can go though. Troughton-Smith didn't mention any release dates or how far along he is into development, but here's a teaser vid he took using an SDK of his.