I have just released quicklauncher, a simple menu that gives quick access to softimage's commands and scripts. It shows a list of every command (without arguments) and scripts (you can set a custom script directory on the preferences) found in your system and allows you to filter them by typing the name of what are you looking for.
It's not context sensitive and doesn't have any special support for ICE, but still I think it helps to speed up your workflow by having everything you need under the fingers (ST2 style

The menu requires PyQtForSoftimage and is available here.
Give it a try and let me know what you think,
Cheers!
