The godfather of tech columnists, Walt Mossberg of the Wall Street Journal, got some face time with Steve Jobs at the iPad launch and Boom Town's Kara Swisher was there with the shaky cam!
When asked why people would buy an iPad iBooks book for $14.99 rather than an Amazon Kindle book for $9.99, Jobs said the books would be the same price, and further said publishers withhold books from Amazon because they're not happy about the price. (Could be referring to Apple's standard 70/30 split which Amazon just recently announced they'd match in some cases).
When asked about battery life, Jobs said the iPad's quoted 10hrs for video/WiFi would actually be a bit longer for iBook reading, and around 140hrs for music playback.
When asked if 10hrs was enough for iBook reading, Jobs pulled out the "no big deal", said users would just plug it in, and asked if anyone reads for more than 10hrs anyway.
When asked if Mossberg could write his iPad review on the iPad, Jobs told him he sure could, in iWork Pages, and export it as a Word Doc if he wanted to. (there's been talk it can export as PDF for easy sharing as well).