Someone on MousePad has posted info about this and MousePlanet has updated their DL update this week (http://www.mouseplanet.com/parkupdat.../dlr050425.htm) with the info. Here's the specifics:
…[Updated] Tickets for Disneyland's new 50th Anniversary guided tour went on sale Wednesday, April 27, though the new tour may be one of the best-kept secrets of the celebration. The 3 1/2 hour tour is $55, and will run four times each day. Each tour can accomodate up to 16 guests. Depending on the time of day, the tour includes the following elements:
"Priority Boarding" for 3 (2nd, 3rd and 4th tour) or 5 (1st tour only) attractions
An illustrated replica of an A-E ticket book
Priority seating to the Parade of Dreams (2nd & 3rd tours) or Remember... Dreams Come True fireworks (4th tour only)
Call 714-781-4400 to make your reservation.
MousePlanet has reserved the 12:15 tour on Thursday, May 5. If you would like to join MousePlanet staff and fellow readers, please contact Adrienne Vincent-Phoenix to reserve a spot.
We figure that even with going on the 4th, there's going to be plenty for us to do on the 5th, so we're not joining their tour time. I've booked us for an afternoon tour on Friday, May 6.
This information isn't really out much yet, so if you're interested, book soon before everyone finds out!