Hi.  I'm currently teaching English for tourism classes at a college in China.  For my students, one of the biggest issues is actually be able to use the language they already know.  Thus, we concentrate a lot on activities aimed at building fluency in addition to teaching language (ie roleplays).  I'm also starting to work with them on sentence-level intonation and expressing emotions.  Pragmatics (politeness, etc.) also seem relevant to them.
 
I'm taking more of a task-based approach than a content-based one.  I'm trying to have my students practice situations and language that they will encounter in their jobs as tour guides, hotel / restaurant managers, etc. 
I just started teaching here a few weeks ago, so I'm sure as the semester goes on I'll have more ideas about what English for tourism specifically entails.  If you're interested, I've started doing a podcast in which I talk about my teaching (available here: 
ESL etc.). 
As far as books go, our textbook is completely irrelevant, and I don't have any academic background in English for tourism.  I've been teaching for over 7 years, though, so I'm hoping to figure it out pretty quickly. 
I hope this helps!  Feel free to ask if you have any more specific questions. 
Take care,
Dave  
ESL etc. - Bringing global issues and activism into language teaching.