If you login to iCloud.com with your Apple ID you can access Apple’s Mail, Address Book, Calendar, Find My iPhone, and iWork apps on the web. Interestingly, beta.icloud.com briefly featured two more apps this morning that are currently unavailable to regular iCloud.com users. Apple pulled the icons after they were discovered a few minutes ago.
The beta version of iCloud.com revealed Apple’s plans to bring its Notes and Reminders iOS apps to the web. You would assumedly be able to see your notes and reminders as they are synced between your iOS devices by logging into the website.