Edit Friend Details
The ability to edit things like the names of friends would be nice to have. When you invite a friend via email, his email address sometimes becomes his displayed name and then changing it is not possible.

A friend’s name can be edited as long as your friend hasn’t yet logged in. On the web: click the friend in the left-hand sidebar, then click the gear/settings icon at the top of the right-hand column, and then choose “Edit friend info”. On the iPhone: tap on a friend, then tap the balance at the top of the screen, then hit the “Edit this friend” button. (We’ll be bringing this feature to Android as well in the very near future.)
Please note that once a friend has logged in, you can no longer change their info – that person has claimed their account, and they are now the only person who can update their name, email, etc.