Obviously, tablets might become truly personal devices in the future as competition drives down the prices. But for now, you should assume that you're designing for a multi-user device. For example, users might be reluctant to stay permanently signed in on an app, and they'll still forget their passwords. It's also important to design recognizable application icons so they'll stand out in the crowded listings of several users' apps.

"On corporate blogs, summaries are usually superior to full articles because they let you expose users to a broad selection of topics. Offering more topics increases the likelihood that users will find something that really interests them and thus will click through to read more. (As opposed to leaving.)"

http://www.useit.com/alertbox/blog-front-pages.html