To access the LinkedIn API via iOS, Hisham Raslan offers a library that aims user simplification via Auth2.0. Steps include to follow LinkedIn developer instructions to add an application, select appropriate permissions, and use APIkey/secret key to download the library.
Celoxis is both an online and installable project management platform integreted with Microsoft Outlook, iCal, Google Calendar, and Salesforce.com, among others. Celoxis explains the Celoxis API in a way that suggests they want you to be able to use it easily.
Just about every enterprise IT organization to one degree or another is struggling with mobile computing to one degree or another, especially when it comes to integrating the applications that run on devices with existing backend enterprise services.
It's been ten months since the Google Plus API was released and over a year that the platform itself has existed. And still there's no way to write content into Google Plus. Or is there? Though it didn't make the major Google I/O announcements, the search giant did release a sort-of writable Google Plus API for developer preview. It's just not the writable API we all expected.