The thing about backups are this. They back everything they can up, or whatever you specify.
So, if I make a registry change in my rom, and you restore your backup, which typically includes the registry, you've undone my work. If I remove a file, and you restore your backup, which includes the \Windows directory, you are putting that file back.
This is the only real disadvantage of using cooked roms, is that backups are dimished somewhat. I always restore my contacts, email, and personal folders from backup, regardless of rom release.
There is a solution, sort of. I've not used it, but may start.
http://www.modaco.com/content/i9x0-o...r-the-dummies/
As for whether you reinstall now, and the backup be good for the future roms--I can say this.
There will be no more radical changes that I can forsee, such as file removal. So in that respect, you are covered. Fixes are mostly what I have planned, with maybe some added features.
That said, I am not going to be updating 1.0 for a bit unless its an emergency, so don't worry about me bringing out 1.x tommorrow
