Now, let's talk about features and bugs I wish to be added and fixed in the future GoldenDict releases:
Features:
1. Popup window should contain a button "Show in the main window". When clicking it, the main window should appear with the same article.
2. Popup window should contain a button "Stop selection scanning"/"Disable Scan Popup". I think this option is self explanatory.
3. Make "Close to tray" shortcut user configurable. Ctrl + F4 is a very difficult keys combination to reach/press.
4. Introduce a user configurable auto-translation/search while typing time interval, e.g. by default after 500ms the entered word should be automatically translated. It's very tiresome to press "Enter" every time you enter a word.
5. Article and list of articles font face should be separately user configurable (who knows, maybe I like Impact

6. Article search (Ctrl + F) should have an option "Highlight all occurrences" (of the found word).
7. Add a global user configurable shortcut to restore the main window (after e.g. it was minimized or hidden to systray).
8. Improve history management:
- Old words should never be dismissed (or make it user configurable, like remember the last 1000 translated words).
- File -> History dialog then must show entries this way:
History ([] are sub-menus).
[2010]->[10]->[20]->List of words.
->[10]->[21]->List of words.
->[09]->[01]->List of words.
Today's word 1.
Today's word 2.
Today's word 3.
Today's word 4.
10. Add an "X" button before/after the word look up edit field - in Unix you can paste a word from clipboard using middle mouse click. So, right now before pasting a new word you need to erase the previous one using keyboard which is very inconvenient.
Bugs:
1. Please, introduce a small delay (say, 300-500ms, probably user configurable) before showing a popup window for a certain key combination, not to interfere with global shortcuts. E.g. I've set my "Show popup window" shortcut to Meta Win (I use Linux). At the same time I have a global shortcut Win+R which shows KDE's "Run Command" window. Unfortunately right now if there's a new word in clipboard I cannot use any Win+<Button> shortcuts, GoldenDict intercepts Win Meta and prevents me from using my global keys combinations.
2. If an article doesn't have an associated wave(sound) resource, "Pronounce the word" button shouldn't be shown or it should be made inactive/gray.
3. Forvo live pronunciation doesn't work for me. I'm using Fedora 13 and GoldenDict 20100804 git415f35e (goldendict-0.9.0-14.20100804git415f35e.fc13.i686.rpm). For any word I always get "The referenced resource failed to download." error message. Needed to add "en" to the list of language codes.
Please, update this message/thread when you implement these features or fix the bugs.
Thank you!