Google and personalized search

Saul Hansell at the IHT has an interesting tidbit buried in his article about Google's Q4 2004 numbers:

[Google CEO Eric] Schmidt said one priority for Google would be the personalization of a search, taking advantage of information about the interests and attributes of each user to present better results.

Google hasn't done much with their personalized search demo since they launched it back in March 2004. I wonder what they're planning?

See also "A real personalized search from Google?"