Real-time collaboration is a hot topic again. This time, it seems, the buzz has substance. Analysts describe a dramatic expansion of audio and videoconferences, e-meetings, instant messaging and other ...

You can send secret messages on your iPhone using the Apple Notes app! Just create a note, tap Share > Collaborate, give edit access to a friend, and start chatting in real-time—no third-party app ...

As simple as it is, Notes is one of the most useful iPhone apps. While most of us use Notes to do things like jot down quick reminders or make a grocery list, there are many more things you can do ...