As mentioned in #telepathy, I am working on Ubuntu One (U1) which is going to provide a set of cloud based services to Ubuntu Users. I would really like to use Telepathy in this project but, I am unclear as to what it will involve. I would appreciate any feedback. Sorry for the long email. Currently, my primary focus is on Screen Sharing using vino/vinagre. I understand there are already changes made to support these over stream tubes which will already provide a lot of what we wanted to do. In addition we would like to do is provide U1 users access to private proxy servers if we can't establish a p2p connection when a Tube offer is made. (This is where I am unsure how this would work) There are also other things we think we can do to improve performance: * Find ways to increase success of P2P connections using Tubes (libnice changes perhaps) * Decrease bandwidth usage by adjusting options in vino (there's a vino bug for this) * Smart Proxy/Message Accelerator between vino/vinagre? (Idea based on http://www-cse.ucsd.edu/~cbtaylor/psu.pdf) * Proxy between server/viewer for Compression like NX? (We can't change RFB, but we could create a special client/server proxy) Here are some additional possibilities we are considering for telepathy/empathy: Connecting U1 Users * Connecting our users to our XMPP server * Contacts Presence (Empathy, custom client) * Chat User <----> User (Empathy) * U1 notifications Server ---> User (Empathy? or custom client) * Bob has shared a folder with you * Bob wants to share his contact list with you... * Bob wants to do this wizbang U1 thing with you (etc..) U1 specific XMPP Extentions: * Not sure, there has to be something (Account Info?) If you have any questions feel free to contact me (jdobrien on freenode)...I'm usually in #ubuntuone or #telepathy. Thank you in advance for your help, John O'Brien