I am searching for a simple messaging solution.
* Windows based Instant Messenger Software, no Java and no Flash
* 100% portable
* OTR encryption or some other *open* encryption
* encrypted voice chat (best would be some ZRTP standard)
* encryted video chat
* no proprietary network
* IM software available must also be available for Android 2.x+, iOS, etc.
* Chrome extension or at least a webbased possibility to use all the mentioned functions
I am searching for a couple of years already and as far as I can tell there is no such solution out there.