I primarily access my Saved Views from the floating Saved Views script palette. It would be great to be able to redefine saved views from here as well + not have to always go to the Saved Views tab of the Navigation palette to do this. You can Edit, Duplicate, Delete + Run a Saved View from the script palette but not Redefine:
It would also be good if you didn't have to click OK in the 'Redefine Saved View' dialog each time you run the command. I never want to change any of the Saved View options so this is an extra click which isn't necessary for me (would I guess require a 'Redefine Saved View Options' somewhere or two versions of the command...)