Hello,
are there plans to implement a more secure way to transfer files than ftp? For example SFTP or FTPS?
Thanks,
Joachim
Similarly HTTPS 
Implementation of these features are in progress and will be provided as a separate security plug in.
Dates?
I don’t know about availability dates for HTTPS. However, it’s quite easy to roll your own secret-key based security over FTP: scavenge a CBC-based cipher from any piece of open source code (you’ll easily find tiny implementations of 3DES for instance), and perform encryption just before wip_write() / decryption just after wip_read().
Notice also that in many cases, a private APN in GPRS provides a sufficient level of security.
is an SFTP connection already possible at this moment? I can’t find it in the documentation.
thanks,
Stefan