PubMed for Handhelds - App
App for iPhone, iPod touch and iPad; Features multiple ways to search PubMed/MEDLINE: PICO (Patient, Intervention, Comparison, Outcome); askMEDLINE, a free-text, natural language search; and Consensus Abstracts. Apple iOS app includes these options as well as BabelMeSH which has search options in 13 languages.