zaTunnel is a new freeware application for Windows Mobile based Pocket PC mobile devices that allows you to forward traffic from POP3, SMTP, Telnet, FTP, VNC and HTTP from your mobile phone through an SSH server that would otherwise be insecure. You can control not only the SSH server but all computers in your intranet network thus allowing remote administration of Unix and other computers via Telnet/FTP/VNC protocol securely from a mobile device.

Download here

(Requires Microsoft.Net Framework 2.0)