I have a suggestion for a future update.
Would it be possible to add a button next to the name in your friends list that you can press to send them a tell. Press the button and it puts the info in chat ready for you to type your message....ie:
/tell friendsname
Would make it easier to send tells to friends, especially those that are on other servers.
Would be nice to see that in the guild screen also right next to the invite button. Just a suggestion...