Again I did not see this if I did let me know.
Is it possible to do private tells to connected users?
To start a chat, use the '/s' command.
Personal chat has not yet been added, but I might be able to squeeze that in for M8, since it should be fairly easy to implement
There is no rush for me on this one as it will be at least 3 weeks before I play my game So take your time.
It is possible in the new alpha build, type /w playername or something
This is true. Eventually you will even be able to whisper to a specific token name (instead of player name), which will whisper to everyone who has 'ownership' of that token (since more than one player can have ownership of a single token).
Additionally, for GMs, soon there will be a /say as, and /whisper as, so that the GM can speak as if from an NPC for example