Google Transit appeared on the Google Labs page (http://labs.google.com/) with a message that it is currently available in select cities.

The cities listed on the transit page (http://www.google.com/transit) are:

Florida
Tampa (HRTA)

Hawaii
Honolulu (HRT)

Oregon
Eugene (Lane Transit District)
Portland (TriMet)

Pennsylvania
Pittsburgh (Port Authority)

Washington
Seattle (King County Metro)

It's a bit strange for this to reappear as a "new" project, when it was already a Labs project for almost the past year:

http://googleblog.blogspot.com/2005/12/public-transit-via-google.html

At that time it worked for Portland, Oregon, so I guess the news is that there are now new cities included.

However, it doesn't seem to include all the cities that expressed an interest in proving data – foe example Albuquerque

http://groups.google.com/group/googletransit/browse_frm/thread/25c323778b9656bb/d906db5715509758#d906db5715509758

Perhaps they couldn't come to a suitable arrangement over the data.

Check the cached version of that page:

http://www.google.com/search?q=cache%3Alabs.google.com

<< Google Transit
Plan trips using public transportation (currently in Portland only)
12/7/05 – Give us feedback – Discuss with others >>

I think they've just moved it to the top because it's now available in other cities too:

<< Google Transit (currently available in select cities)
Plan trips using public transportation
09/25/06 – Give us feedback – Discuss with others >>

That's right Tony.

Google Transit first came online on December 8, 2005.

Today, 5 more cities were added.

If you or others are interested I took some time to list some (a handful really) of MANY tools and databases that offer trip planning, real time transit info, or both. This is by now means a complete list.
It's posted here. Lots of cool databases.
http://www.resourceshelf.com/2006/09/26/google-expands-google-transit-with-new-cities-if-your-city-or-metro-not-listed-lots-of-other-tools/

If you're looking for more real time info (like airplanes and other sources), we're building a collection here:
http://www.resourceshelf.com/category/real-time-information/

The homepage has changed too.

They really need to speed this process up. 5 cities after about 10 months. Come on!

Yeah, Sam, it really has been a very slow process! I wonder if it's hard to get all the information or what. I remember playing around with the Portland-only version way back when it came out, but definitely thought it would be a much bigger rollout now.