"Would I be any better off installing this while using Snow Leopard?"
I have an "early 2010" MacBook Pro 13". It's currently running 10.6.8.
I downloaded the just-released firmware update, tried to install it.
When double-clicked, the installer pkg file throws up the following error alert:
"This software is not supported on your system"
Well
. I have the very "system" it's intended for, that being an "early 2010" MacBook Pro!
Having said that, perhaps the firmware update will only run under Lion
.