Hi,
We have the gel dispensers in our hospital now (in addition to soap).
Personally, I'd want soap in a bathroom. It's much better when you have to remove any, um, debris from your hands.
The gels aren't really all that bad, though. There's a big difference between the ones with antibiotic and the ones with alcohol. Alcohol based gels do not contribute to bacterial resistance. They also kill viruses. They don't work quite as well as good handwashing, but, not everyone is as diligent as the first poster. Overall, people tend to use them more, so you may be better off in general.
Currantly, in the hospital, we wash upon entering the ICU. I rewash if my hands get dirty or if I sneeze/cough. Between patients, we just gel. Compliance rates are much better with this system. Plus, I notice my hands are much less chapped than with only washing. (But, I'm guessing most people don't have to wash 20 -30 times/day)