Now Ubuntu is guilty of including malware disguised as an innocent-looking feature known as Zeitgeist. It keeps track of way too many things, and is part of the Unity desktop. And apparantly is or will be part of Gnome 3 as well. It keeps track of usage patters, instant messages, and such. I moved away from Windows because it had become a piece of Malware on it's own, and now this! Anyone in doubt can google it. Removing zeitgeist cripples Unity, and I suppose would do the same to Gnome 3. I know there are other desktops out there, but shouldn't the Linux community have seen this and objected to it?
Malware? Are you a penetration tester, hacker, or working in the computer security field? How can you make such claim?
...Talk about an exaggeration beyond mass proportions!
Has it in any way compromised your data, by sending it out to a third party without warning you?
Has it caused your system to mis-behave in any way, shape, or form?
Has it destroyed or modified any of your personal data?
Is it impossible or difficult to remove?
...And before you continue in your foolish, ignorant behaviour of FUD; I have done a network analysis (via Wireshark) on a 11.04 box to see if anything comes out. Nothing. It doesn't send any data out. It doesn't dial back home to Canonical servers, so your private collection of porn viewing habits is safe.
I've just ran through zeitgeist code. Its nothing but a bunch of Python scripts that call upon sqlite3, logging, dbus, etc for indexing purposes. I don't see any code involving malicious activities against the system.
Could it be used against you? Sure, but your system needs to be compromised first. Hell, I can use your hammer against you by getting it out of your toolbox and smash you with it. But I won't be able to if you keep your toolbox locked and away from my reach.
You're going to have to realise the more eye candy and funky features people demand in computing and other technological devices; the more its going to open up all sorts of things in terms of security.
If you don't like it; Uninstall it and use something else. That's the beauty of Linux. You at least have a choice. (Something you can't easily do with real malware or certain elements of Windows you don't agree with.)
You should worry more about Adobe Flash, Adobe Reader, Sun's Java Runtime Environment, etc. Those types of solutions allow one to see lots of interesting things about your system and make excellent malware vectors. (They're good for working around Windows's security mechanisms like DEP, ASLR, etc.)...You should also be worried about search engine, email, social networking, mobile phone, etc providers. They use your habits and data for third-party ads and marketing information. They even openly admit it in their privacy terms!
This is why I don't use Ubuntu. I stick with Debian and Xfce desktop environment...Its more work to set-up at the beginning, but at least I can control exactly what's being installed from the start by installing the core bits and then only adding what I need and use.