http://threatpost.com/en_us/blogs/htc-phones-pre-installed-mariposa-bot-client-030910Security researchers have found that Vodafone, one of the world's larger wireless providers, is distributing some HTC phones with malware pre-installed on them.
So much for the Android's "openness". This will never happen to the iPhone (or the chances are verrryy verryy small).