I really, really, really don't want to ever have to install antivirus software on a smartphone. For what little risk is out there right now, it's absolutely not worth the program memory for me to do it. If you're the paranoid type, however, feel free to toss money at Mobile AntiVirus. I won't call you a sucker -- to your face.
Symantec Corp. has announced its Mobile AntiVirus 4.0 for Windows Mobile, developed to work on Pocket PCs and smartphones running on the Windows Mobile 5.0 platform. The software automatically protects mobile devices from threats transmitted via e-mail and multimedia messaging service (MMS), downloaded from memory cards, the cellular network and Wi-Fi, transmitted by Bluetooth or beamed over infrared connections.