Top Gun ssh is an ssh (version 1) client for palmtops running PalmOS and having a TCP/IP stack.
This includes the Palm Pilot Pro, Palm III, Palm V/Vx, m105, m500, m505 and the corresponding models of Workpad and Visor.
It does not include the Palm VII; that machine apparently has no way to do TCP/IP.
The current version is 1.3. This version fixes a bug in 1.2 that prevented Top Gun ssh from connecting to newer sshd version 2 servers, even when those servers has a version 1 fallback mode enabled.