In most instances, I think I would still prefer the paperback versions of the guides. There is more information (including the Staten Island Ferry tidbit in the paper new York Guide, a comprehensive list of theaters in the Chicago guide, etc.), a slew of full color maps, and you have the ability to thumb through each guide easily. And, of course,  paperbacks are only about 15 bucks a pop. However, the trend in recent guidebooks is to give a history lesson. In that sense, the electronic guides are less verbose, thankfully, and electronic searching and organizing is a big plus. Did I mention the bookmark feature? Or the ability to take notes on the handheld?  Those are both very nice.

Conclusion

All, in all though, the guides are quite wonderful – presenting me with really useful information. Clear, concise and well organized. Supplementing them with a real map may be all you need.