Ars Technica is in Cupertino today to cover Apple's iPhone OS 3.0 "advance preview" event. The keynote begins at 10am Pacific Time, so bookmark this post for our live coverage.

Below this text, you'll see a box with a play button; just click it and you'll brought into the live blog of the event. What's cool with this system is that no refreshing of the page is required; all the updates will come to your browser in real time. We can even take questions from readers. Poke through the client and let us know what you think.

(Special thanks to our friends at Gizmodo for allowing us to use some of their photos from the event.)

In the meantime, why not brush up on our wish list for what is likely to be a major OS upgrade, as well as a description of how copy and paste—one of the most requested features—may work.

Please also join in on IRC if you don't feel like using the web, we're piping everything into #appleevent and you can discuss the whole shebang with your fellow macheads in #macintosh.