When skype and/or eclipse-3.7.1 start from command line, they appear with ugly icon on the dash. The problem seem to relate to those *.desktop file in /usr/share/applications.
My dirty fix is to modify skype-skype.desktop: rename it to skype.desktop with the following content:
[Desktop Entry]
Name=skype
Type=Application
Comment=An P2P Internet Telephony (VoiceIP) client
Exec=skype
TryExec=skype
Icon=skype
Categories=Network;InstantMessaging;Telephony;
and do the same for eclipse.desktop:
[Desktop Entry]
Name=Eclipse
Type=Application
Comment=Eclipse SDK
Exec=eclipse-3.7
TryExec=eclipse-3.7
#Icon=/usr/lib64/eclipse-3.7/icon.xpm
Icon=eclipse
Categories=Development;