A couple of friend related Twitter app ideas:

Is there an app that shows all the Twitpics my friends posted?

…and…

Is there a way to see the trends ONLY from people I am following?

I quite like the Trends idea – it would be a good way to get an overview of what’s big discussions that have been happening with people in your Twitter stream while you’ve been away from it.

The Twitpics one is also a nice idea – again, giving you a way to quickly dip into see what’s been happening with your friends while you’ve been away.

Taken from the TwitEye ideas stream.