Is there a way to log in to an iCloud account programmatically (assuming I have the UserID and Password)? I am using Ensembles 1.0 and would like to have the user enter the iCloud credentials and the app will log into the iCloud account "automatically".
No. The iCloud account used affects the entire device. No individual app can use an iCloud account other than the one the user may currently be logged into on the device.