Looks like iObit has joined the party with a free and
portable uninstaller that appears to copy Revo's approach pretty closely. Works with Windows 7 but I didn't see anything specific about 64-bit.
gHacks just did a write-up on it:
Link:
http://www.ghacks.net/201...y-with-iobit-uninstaller/IObit Uninstaller is another application that tackles those uninstallation leftovers. The portable software uninstaller displays a list of installed programs in its interface. The sidebar contains several other useful shortcuts to only list toolbars, programs that have been recently installed, large programs, rarely used software and Windows Updates.

I downloaded it and gave it a try. Looks to be a workable solution. And the fact it's a portable app makes it a good candidate for inclusion on an all-purpose tech tool USB key.

Download link:
http://iobit.com/download...duct=advanced-uninstaller