services drupalsite

Using DrupalSite to connect to services it seems you can only make one service call at a time.

I've made a new service called taxonomy.getTerm in the taxonomy_service.module - this uses taxonomy_get_term() to return a term. I have a need to load multiple terms for each node - so each node that i'm getting in flash uses this service i've made to get all the term data. Unfortunately the BLOCKING method in DrupalSite prevents you running multiple simultaneous service calls.

Is there a good reason for this, if not what's a good work around?