I have the same issues on a Macbook 4.1, with the same symptoms as WilliamWolf -- shorter periods of leaving the computer suspended yield a lower chance of laggy touchpad+keyboard, while higher periods of time carry a risk of touchpad/keyboard not working after a resume. The problem does not affect my external keyboard or mouse, but it really makes laptop usage inconvenient and necessitates unnecessary reboots.
I have the same issues on a Macbook 4.1, with the same symptoms as WilliamWolf -- shorter periods of leaving the computer suspended yield a lower chance of laggy touchpad+keyboard, while higher periods of time carry a risk of touchpad/keyboard not working after a resume. The problem does not affect my external keyboard or mouse, but it really makes laptop usage inconvenient and necessitates unnecessary reboots.