I've done my custom build of MidpSSH that is intended to work on blackberries.
All props go to Karl @ XK72 for providing this open source project. I'll continue to work on it to see if I can change some display settings (ie fonts).
Heres what I added apart from his latest released src (1.7.3)
* BIS-B support (depends on carrier on which ports you might be able to work, IE on mine they block port 22, but I just changed my sshd port of linux box to a higher port,). When configuring the host, just add :PORT (so it would be IP.OF.SERVER:PORT
* WIFI support
* Application is signed in order to gain access to some RIM protected APIs
Heres the OTA link for it
Latest: 1.7.4 beta2 http://ota.deltatech.com.mx/