New Titan user questions

[remlle]

Im a new titan User. Ive been a long time Treo user and switched because I wanted the screen area. Ide like to know a few things and I have searched but may not have searched enough.
1. is there a locking program or a way to lock the unit so I have to hit the power button as well as a secondary key like on the treo? I find my phone turned on frequently when in the older by accidental bumping the power button.

2. is there a program that will close the programs when I hit the ok button to clise it instead of minimising it.

other then that I love the device.