Just for fun, I have created my own version of the Google I/O schedule web app with a couple of extra features to make it even easier to plan your #io15
The additional features are:
1) Links to alternate times for any session that is playing more than once.
2) Icons showing when you are already scheduled to attend an instance of a session.
3) Icons showing that you are scheduled to see the same session at more than one time during the conference.
Please note the following limitations: Your schedule choices are saved to your browser cookies and therefore will not be shared across devices. Your schedule choices will not be shared with the official I/O scheduling apps. All session times are displayed using the PDT time zone.