"2. Simplified browsing. There are a lot of cases where you'd trade some of the power of a web browser for greater simplicity. Grandparents and small children don't want the full web; they want to communicate and share pictures and look things up. What viable ideas lie undiscovered in the space between a digital photo frame and a computer running Firefox? If you built one now, who else would use it besides grandparents and small children? "
After 7 years, we know clearly now tablets/phones and mobile apps are the answers for that question for the present.
http://old.ycombinator.com/ideas.html
"2. Simplified browsing. There are a lot of cases where you'd trade some of the power of a web browser for greater simplicity. Grandparents and small children don't want the full web; they want to communicate and share pictures and look things up. What viable ideas lie undiscovered in the space between a digital photo frame and a computer running Firefox? If you built one now, who else would use it besides grandparents and small children? "
After 7 years, we know clearly now tablets/phones and mobile apps are the answers for that question for the present.