Schmidt did not set a timetable for a Mac version of, saying it had to be rebuilt from the ground up because of the fundamental differences between the Mac OS and Windows.
"We intend to do it," Schmidt said at a University of California-Los Angeles conference commemorating the 35th anniversary of the Internet.
Google released the desktop tool, staking out early ground in a battle for personal-information retrieval that is expected to eventually include players like and even Apple.
But some people raised concerns about the threat to privacy from software that could scour e-mails, instant messages and other personal threads.
"We will be very sensitive about this personal information for obvious reasons," Schmidt said.
Google parlayed its dominance in the Web search business into ain August. Since then, its shares have nearly doubled, and they just missed touching $200 on Friday.
Last month, when issuing its first earnings figures since becoming a publicly traded company, Google.