[KoRn]

"It is the client that is still useful."

I sometimes use telnet for troubleshooting email servers, connecting to port 25 to work with Postfix.

[Noumenon]

I use telnet to program some of the VSAT modems I work with. Had to copy it from my one of my XP installs in order to have it on my Vista laptop.

[zeugma]

I sometimes use telnet for troubleshooting email servers, connecting to port 25 to work with Postfix.

yup. exactly. The telnet client is an extremely useful troubleshooting tool. This is one of the reasons I'm trying to find out if rumors of it's demise in Vista are premature.