Apple's official iPhone developer site. Features an embarrassing use of the phrase "Web 2.0," as well as some good information on optimizing web sites and building web applications for the iPhone.

Danny Goodman, author of at least two must-have books on web development, has iPhone development notes and a little page where he'll be posting his experiments. All the more admirable for its modesty.

Gems for the iPhone, a game.

Telekinesis, from the author of Quicksilver, runs a small web server on your Mac that delivers a nice menu of options to your iPhone, as a sort of "iPhone remote" for your computer. It's just a demo (possibly security problem), but it's a cool idea.

Wlt Mossberg on iPhone accessories and "software" (web apps). Walt calls out a Sudoku game and a movie times lookup site as two early decent examples.

iPhoneWidgetList.com, a decent list. iPhoneApplicationList.com is ugly and has pretty much the same stuff, but it's another list.