From the Press Release (PDF):
RefMobile is a version of RefWorks for mobile and smart phones, as well as PDAs, that allows you to access and view your references, manage folders and even add information to the Notes field of your references. In addition to being able to access and manage your references, RefMobile has a feature – SmartAdd – that will search the web for references based on a digital object identifier (DOI), PubMed ID (PMID), PubMed Central ID (PMCID), ISSN/ISBN number or by author and publication year or even search using part of a title. References located by SmartAdd can even be imported into your RefWorks account via RefMobile. Any user can access RefMobile at http://www.refworks.com/mobile. Please note: you must have a group code to access RefMobile. Currently Shibboleth and Athens authentication is not enabled.