A friend of mine has a Samsung Galaxy and he mentioned to me that their latest recovery image has the ability to back-up/restore all google apps to the sd card. When you purchased your Hero, you purchased the google apps so are intitled to make back-ups. This obviously helps with regards to future custom ROMS so the dev doesnt need to include them on their ROMS so they wont get any nasty letters off google, then when you've flashed your new ROM you just restore your G apps and everythings fine and dandy.
I was wondering if this is something our devs were looking into or are already on it?
If there's already a post on this I apoligise, I had a quick look