Well, just a mental exercise:
=> If the user came and told about "virus" in webOS without more details, I believe that is not a advanced user;
=> If is not a advanced user, I believe that don't use Preware, patches or DevMode;
=> If don't use Preware and Patches, he have all that can be restored in his Palm Profile (webOS Profile, to purists. );
=> If the profile can restore, Doctor is the most simple solution.
=> If Doctor is the simple solution... why not?
Remembering: Doctor don't erase the USB Drive. So, the information still continue in device.
But... this gives me an question... can we have an "Automatic USB Drive Backup To PC/Mac Solution"? I don't believe that can be so dificult imagine something like that...
If you disagree, clap your hands. If you agree, clap your hands, too!