<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Tony Finch schrieb: <blockquote cite="midPine.LNX.4.64.0511192248200.26386@hermes-1.csi.cam.ac.uk" type="cite"> <pre wrap="">On Sat, 19 Nov 2005, Ulrich Staudinger wrote: </pre> <blockquote type="cite"> <pre wrap="">i am just wondering if someone expenses thoughts on an interplanetary IM system, similar to the interplanetary Mail system: </pre> </blockquote> <pre wrap=""> Isn't "instant" messaging fundamentally incompatible with 30 minute round-trip times? </pre> </blockquote> :-) Fundamentally spoken, i think the message itself doesn't get old from A to B (it travels at almost lightspeed). And once arrived the message will be delivered immediately and instantaneously to it's target, contrary to Mail; Mail is stored in a mailbox by default. Presence is an interesting scenario, too. Of course the presence informations would be delayed by 5 minutes for my little venus express, but i could see if my service inside that planet probe is online or not ... I think XMPP is really interesting for it's XML nature. If only the tags weren't so long, these produce a massive overhead. Cheers, Ulrich </body> </html>