I have a runtime solution that I need to create a timeout script for. Basically, I need the user to be kicked off after a certain period of inactivity. Any ideas?

I am not sure you can kick off a user automatically with a runtime, but you could stop a user from going anywhere once a certain time has elapsed. You would have to perform a subscript each time the user runs a navigation or tries to enter a field. This subscript would set a field or global field with a timestamp and also do a compare with the current timestamp. If the period between the timestamps have surpassed the amount that you want, then send the user to a layout stating that due to inactivity the user session has been terminated (or this can be done via a custom dialog)