ConnectBot is a powerful open-source secure shell (SSH) client. It can manage simultaneous SSH sessions, create secure tunnels, and copy/paste between other applications. hot
SSHDroid is a SSH server for Android devices. This application lets you to connect to your device from a PC and execute commands or edit files. hot
ServerAssistant is a one-click solution to execute remote commands via ssh. The application lets you manage your servers. Create shortcuts for restarting your daemons and services.
SSHmote is a simple remote for the Android platform which uses the SSH protocol to control your favourite multimedia applications through editable profiles.
Telnet / SSH Simple Client
Telnet / SSH Simple Client is a very basic telnet and SSH-2 client.