Hello,
It would be nice to see support for XEP-0198 in SMACK.
XEP-0198 is meant for stanza acknowledgement and restoration of broken sessions. This is essential for mobile clients to cope with network disconnects and changes between Wi-Fi and 3G on smartphones.
XEP-0198 has been promoted to draft standard recently, so it seems very reasonable to implement it
Kind regards,
Georg