Hey there-

Since there seems to be many types of mobile devices, I figured it would interesting to sort out all the possible ways malware can propagate through mobile devices.

This means listing all possible ways your personal device receives or sends information between other devices or the internet. Perhaps you know how to automatically add your buisness card info to a nearby bluetooth device, or you can grab info about nearby devices.

The PDA my friend uses has a cradle, and that's the only way I can picture it being infected. I would expect a malicious file that get syncronized to it is the only way it can be attacked.

I hear some phones can send / receive ringtones from one another, there's another possibility.

So that's where I'm going, if you have a mobile device let's hear what type of functionality it has and perhaps we can discuss what mobile threats will appear in the future.