Allows an application to read all of the contact (address) data stored on your phone. Malicious applications can use this to send your data to other people.
Allows application to take pictures with the camera. This allows the application at any time to collect images the camera is seeing.
automatically start at boot
Allows an application to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the application to slow down overall performance of the phone by constantly running.