Trend Micro Mobile Security

A new version of Trend Micro Mobile Security adds protection against hackers and intrusions while improving on the previously available mobile malicious code protection for mobile malware and SMS spam. 
 
Trend Micro’s new offering claims to be the only mobile security product on the market that has anti-virus protection and a firewall.

It’s available now for Windows Mobile 5.0, with a Symbian Series 60 implementation due next year.