do I need firewall for my pocketpc?

[FAG]

do I need firewall for my pocketpc?
im using GPRS intrnet
?

is there any exploit in windows mobile 2003 ?

[WSFuser]

afaik, very few security products exist for handhelds and even of those theyre mainly antivirus. symantec, kaspersky, and trend micro have a mobile AV and f-secure is coming up with one.

edit: i found SafePDA (http://www.safepda.com/) and they offer antivirus (http://www.safepda.com/pocketpc_antivirus.htm), firewall (http://www.safepda.com/pocketpc_firewall.htm), and even encryption (http://www.safepda.com/pocketpc_encrypter.htm) for PDAs.