The latest edition of LP Beijing follows the new formatting that LP introduced in 2004 for its travel guides. There are inserts of colour photography for those of you so inclined. The Language section is OK, and chinese is used on the maps to assist you when dealing with taxi/bus drivers.
Generally speaking, the LP Beijing City Guide will do the job for short term visitors to the city, and these short term visitors are the target audience for these books. Those staying long term as ESL teachers or in other capacities will find it lacking after a while, but there is only so much you can squeeze into these books anyway.
Just a note to those planning on visiting the city in the next few months. A lot of the major sights, such as the Forbidden City and the Temple of Heaven, are under restoration as part of the city's preparation for the 2008 Olympics (see the Olympic countdown clock outside the main entrance of the Museum of Chinese History), with scaffolding and workmen all over the show. You can still get into these places, but may not be able to see all the sights mentioned in the guidebook. But be sure to get a photo of the Starbucks which is slap bang in the middle of this historic city. Commercialism at its finest...
I'm normally a devoted LP customer, but I have to admit to making an impulse decision to purchase the Insight City Guide to Beijing. I found the Insight guide to be almost as good, particularly where maps are concerned. The Insight guide was also cheaper than the LP book, although I think the LP listed more activities. For me though, Lonely Planet still sets the standard for Travel Guides.