Spotlight stolen from BeOS? LaunchBar which goes back to the NeXT days has the basic Spotlight features and more. While it's not a NeXT company product, it was

Spotlight stolen from BeOS? LaunchBar which goes back to the NeXT days has the basic Spotlight features and more. While it's not a NeXT company product, it was a third-party product for their OS. I'd say it's more likely they borrowed ideas from it, if anything. But given they had Sherlock (where the initial version predates OS X), I'd say it was initially more of a re-imagining of Sherlock.