Today's TUAW TV Live will be a bit shorter than usual -- a half hour -- and come to you from a different location. I'm in San Francisco for Macworld | iWorld 2012 with a number of the other TUAW bloggers and editors, so I thought I'd do a quick show about Macworld | iWorld today. I may or may not have a guest on today's show, although I'm trying my darnedest to wrangle one of the other bloggers into joining me. The topics may range from iBooks Author to Apple's cosmic earnings report yesterday, although as you know I have a tendency to not follow a script Below, you'll find a Ustream livestream viewer and a chat tool. The chat tool allows you to participate by asking questions or making comments. If you're driving somewhere and would like to watch TUAW T