basically, renice is a linux utility for changing the priority of applications.
you run it like this:
renice PRIORITY `pidof APPNAME`
appname is the name of an application (duh!), priority is -20 to 20, -20 being highest priority.
I'm running this at the moment:
renice -20 `pidof com.android.mms`
renice -19 `pidof com.android.phone`
renice -18 `pidof mediaserver`
renice 0 `pidof com.google.process.gapps`
on drizzy's full v3, and I think I see an improvement in phone pickup speed and I haven't lost an sms yet.
YMMV, but it's certainly worth playing with.
if you get an error when running the renice command it's probably because the app you're trying to reprioritise isn't actually running... so launch the app on your phone, then try the renice command.
ps: mods, I posted this in the hero forum first by mistake, could one of you lovely people delete that thread? ta.