It depends what I am doing at the time. If my fingers are on the keypad then the enter key but if I am using the trackpad then I click that.
I can't see it doing any excessive damage - eventually it will wear out but only the same way as any of the buttons on the BB.
CrackBerry is in no way Affiliated with BlackBerry. We take pride in our unbiased content, however do occasionally receive free products from vendors that we review or discuss. For more info click here.