Enhanced security and resource utilization in a multi-operating system environment

A computer program product for operating a mobile device having first and second operating systems installed on the mobile device, the mobile device consuming more power while executing the first operating system than while executing the second operating system, the computer program product comprising:

• one or more computer-readable storage devices and program instructions stored on the one or more storage devices, the one or more computer-readable storage devices not being signal propagation media, and the program instructions comprising:
• program instructions to determine, while the mobile device is executing the first operating system but not the second operating system, that an amount of battery power remaining in the mobile device is less than a predetermined threshold, and based in part on the remaining battery power in the mobile device and the lower power consumption of the mobile device if executing the second operating system but not the first operating system, to terminate execution of the first operating system in the mobile device and execute the second operating system in the mobile device;
• program instructions, stored on the one or more storage devices, to determine applications being executed on the mobile device while the mobile device executes the first operating system;
• program instructions, stored on the one or more storage devices, to retrieve from a table in a data repository first rates of the applications using the battery power of the mobile device based on the applications being executed on the mobile device while the mobile device executes the first operating system;
• program instructions, stored on the one or more storage devices, to retrieve from the table in the data repository second rates of the applications using the battery power of the mobile device based on the applications being executed on the mobile device while the mobile device executes the second operating system;
• program instructions, stored on the one or more storage devices, to generate first and second sums by adding the first rates together and by adding the second rates together, respectively;
• and
• program instructions, stored on the one or more storage devices, to determine the first sum is greater than the second sum,
• wherein a termination of the execution of the first operating system in the mobile device and an execution of the second operating system in the mobile device are based in part on the first sum being greater than the second sum.