QUOTE (scarecrow @ Dec 28 2007, 07:56 AM)

None, really- just some OOo macros and php scripts, which have pretty limited impact (at worst they will screw a couple of things at your local user account). But the system core will not feel anything.
OT: I've always found this funny... how people say "oh, it won't be bad, you'll just lose your home directory".
On Linux, your home dir is the worst thing you can lose. That's where your irreplacable data is. You can tell people to backup, but even then its easy to lose a day or two of work even if you do backup.
Personally, I'd rather keep my home dir and lose my system -- a linux install is cheap and quick. I can get Arch up and running nominal in less than an hour. A basic Mandriva install can be installed with internet, office, email and other basic capabilities running in less than half an hour -- if not out of the box.
So... let's not get ahead of ourselves here -- Linux isnt invulnerable, it just isnt being targetted yet. Inevitably, if Linux does get a larger market share on the desktop it will become a greater target. And in that case, you can expect to see a lot of emails, from which people will _still_ stupidly click and run the attachment. Or dodgy websites. Or bad passwords. Humans are still the biggest security flaw.