MacBook Pro keyboard/mouse events delayed on Bluetooth

I have a late-2008 MacBook Pro (the original Unibody).
Sometimes my Apple Wireless Keyboard (latest model) ends up delaying its various key events; I'll press a key and it'll take a little while to respond, or sometimes the release gets delayed causing a long series of repeats (sometimes a few seconds' worth). This is very annoying, and it comes and goes seemingly at random.
I know a lot of other people have had this issue but there don't seem to be any open threads for it right now. There are only two answers I've found: installing a firmware update (but that firmware is for the wired keyboard, not the wireless one), or disabling key repeat (which I actually, you know, use).
I've also noticed similar delay/lag issues with the Magic Trackpad, so it makes me think that the problem is with the MacBook Pro itself. I haven't noticed this happening on the bulit-in keyboard or touchpad.
Anyone have any ideas?

fluffy wrote:
"Share my Internet connection" wasn't checked. Also I forgot to mention but I've set the devices up multiple times, with no change in behavior.
It looks like all the "solutions" out there (change the batteries, zap the PRAM, etc.) are more just cargo-cult thinking that doesn't have much to do with the underlying problem, it's just that with such a low-repeatability issue that only comes up sporadically, of course rebooting your computer or zapping the PRAM will make the problem "temporarily go away" (just as waiting around and doing nothing will).
I/we have no way of knowing what you have tried, so I/we go through troubleshooting steps. Apparently there is no clear-cut solution for your issue. The only other question I have is if there are other devices within 50' or so of your MBP which might operate on the same frequency and be causing interference.

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MacBook Pro keyboard/mouse events delayed on Bluetooth

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