SSH Daemon on your phone. Easy shell and file transfer. scp/sftp. Root optional.
QuickSSHd, based on dropbear sshd, allows you to easily configure and run a Secure Shell/SSH Server. Connect to your phone from your PC and execute commands or transfer files. Similar to "Terminal" or "adb shell" but over the network.
File transfer to sdcard by scp or SFTP (Secure FTP, WinSCP, Cyberduck).
Root is optional
In QuickSSHd 2.0.3 Superuser.apk 2.2 fixes