Thanks Johan!!! And believe me… I didn’t know that Mac OS already have a “Keyboard Viewer”…
About Keyboard Viewer: http://docs.info.apple.com/article.html?path=Mac/10.5/en/9024.html (and if Keyboard Viewer not appear in the Input menu or in International preferences: http://docs.info.apple.com/article.html?artnum=307354 )
Although, I ready think there is a place for this virtual keyboard!