Is there a reason that there is not yet a passable price app that displays several different exchange prices? And one that doesn't crash when a particular exchange stops sending data? When Mt Gox was alive I liked the Bitcoin Exchange watcher, but the pop-up window that tells you that there is no data is really annoying, and it would be a lot nicer if you had options to run it in the system tray, the toolbar, etc.
"Bitcoin Ticker" for Chrome is pretty decent.