If you like Taki you may find useful other Blackberry PlayBook apps:
Native PlayBook application providing Telnet, SSH and Rlogin client and terminal emulator.
With this utility you’ll be able to find where PlayBook apps sending data and to what hosts your PlayBook talks behind the scene.
Native PlayBook FTP client. It’ll allow you to access FTP sites from your PlayBook and to upload /download files.
Native PlayBook and BlackBerry 10 SIP softphone. Now available for Z10 and Q10 phones.