gnome window should work with keyboard.

Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately, we can't fix it because your description didn't include enough information. You may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem. We have instructions on debugging some types of problems at http://wiki.ubuntu.com/DebuggingProcedures.
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Thanks!

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Gnome desktop does provide keyboard shortcuts to control windows.
http://library.gnome.org/users/gnome-access-guide/unstable/keynav-13.html.en

Thanks for your hint!

1)
Keyboard commands as defined now:
"Alt+ spacebar Open the Window menu.
Alt+F4 Close the window.
Alt+F9 Minimize the window.
Alt+F10 Maximize the window.
Alt+F5 Restore a maximized window to its original size. "

2)
These keyboard commands are now completely unintuitive. Moreover they are unusable for fast and efficient keyboard working. The keyboard commands should be changed for better usability!

My suggestion:
* close activated window: Alt + Esc (immediate some keystrokes: restart closed application in some former position)
* minimize activated window: Alt + F1 (immediate some keystrokes: maximize in former position)
* activated window to the half left side: Alt + 1
* activated window to the half right side: Alt + 2

After this rearrangement all combinations can be typed be the left hand. Furthermore, it fits very well with the "switch application" command (Alt + Tab).

3)
Moreover the keyboard commands should be shown, when a user hovers over the three upper right control buttons (minimiz, maximize, close). It's only a slight change. Only the pop up text has to be added.

Your request has been forwarded upstream at http://bugzilla.gnome.org/show_bug.cgi?id=597744