The Cochrane Library, hosted by Wiley is a mobile friendly site. You should be able to access the database from your tablet or phone using the URL's on the library's Pulse page or this libguide.
Cochrane does have an IPad app that is availble from the Itunes store. This app is not related to the library's subscription and contains abridged Systematic reviews. All content in the app is free, and new issues are downloaded to your Newsstand.