Sync conversations across platforms?
So I'm testing switching my IM needs all to ChatSecure for my Android devices, and Pidgin with OTR on my desktop systems, getting away from using the standard chat within Gmail. I notice I can IM just fine from either Pidgin on my desktop or ChatSecure on my Android devices, however the conversations do not sync between the devices: Whether that is ChatSecure on two different Android devices, Pidgin on a desktop, or any combination. The conversations are all "islands".
In Contrast, when using google's Hangouts on Android, and the web-based chat inside gmail on a browser, those conversations remain fully sync'ed, so I can "roam" between devices and carry on my conversations.
Is this a limitation of the protocol, the app, or am I just missing a setting?

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Torsten Appelhagen commented
I agree to what Gunter said, but since ChatSecure supports (encrypted?) group chat it should at least be possible to make an "internal" group between all devices of the user(s) which could be synced as long as they are online?
At the moment I have big troubles with unreadable or missing messages when being online with my smartphone and PC at the same time! -
Gunther Stengl commented
I think the problem here is the encryption. As the keys for OTR are computed on each device one can't/shouldn't be able to just sync or copy the conversation to another device (with different keys) and read it there. Just a guess.
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Saad Chaaban commented
adding to this ida:
Syncing my Facebook Messages... sometimes i use my PC to answere D: