Spybot - Search & Destroy for Smartphone 0.3 
903 KB, freeware, rate:  
Spybot - Search & Destroy for Smartphone detects and removes spyware, a relatively new kind of threat not yet covered by common anti-virus applications
more info screenshot

Trend Micro Mobile Security 2.0.0.2146 
1.37 MB, shareware, rate:  
Trend Micro Mobile Security features an easy-to-use mobile handset interface that simplifies protection from viruses and SMS text message spam
more info screenshot

F-Secure Mobile Anti-Virus 2.1 Build 12041 
719 KB, shareware, rate:  
F-Secure Anti-Virus protects your smartphone against viruses, spyware, worms, and Trojans. Protection is needed on every smartphone to secure the continuously increasing mobile communication
more info screenshot