Looks like somebody finally made a malicious trojan for cellphones—specifically phones running Symbian. Called the ‘SymbOS/Skulls’ trojan, it is often advertised as an ‘Extended Theme Manager’ by ‘Tee-222.’ If you install the program, your phone will often stop booting up and when it does, most of your program icons are swapped with skills (I suspect the Animated Skeleton Community United Liberation League, “We Make No Bones About Freedom”).
Fortunately, it doesn’t propagate through Bluetooth, just gullibility, so if just be aware of untrusted sources and you should be okay.
More info on the new Symbian trojan [F-Secure via Mobile9]
Alternate mottos include, “We Have a Bone to Pick with Injustice,” and “Bone Thugs & Liberty.”