Four good reads to pass the 15 minutes until the keynote begins:

• Harry McCracken takes on the (doomed) task of managing expectations by looking at history
• Leading Apple blogger John Gruber gives us a keynote prelude by looking at today’s landscape a figuring out what Apple needs to do next
• The New York Times further explores the idea that Apple is about to push into heath and home
• And the Unofficial Apple Weblog’s staff play the keynote guessing game.

See you later on this evening for some post-event analysis.