JamochaMUD - the features
Hmm... since JamochaMUD does actually seem to be developing some useful features I've decided to take a little time and make a little more indepth list. It's gotta be a great selling feature, no? (Now if only it weren't free...!)

• Secure Socket connections (SSL)
• JamochaMUD can handle Multiple MU* connections simultaneously
• Support for both terminated and unterminated lines (common on many MU*s)
• ANSI Colour support
• Multi-language support (languages that are not supported currently can easily be added by folks that needn't even know how to program).
• Unicode support which allows the display of double-byte languages and Non-western language font support, such as Russian cyrillic characters
• Support for JamochaMUD plugins that extend the features of the basic MU* client
• Socks5 support (perhaps limited, but it does work!)
• Programmable macros and definitions
• Automatic and manual log-files
• Quick reconnect to a MU* that you had just left.
• Changing font size, type, and (base) colour
• Changeable background colour
• Ability to choose between a "low colour" and "high colour" output palette
• Custom output colours
• Assign external programs to deal with special features, such as URLs.
• Socks5 support
• Manage plugins independently of each other
• Autofocus input (automagically sends typing to the text-input window if another frame of JamochaMUD is currently in focus).
• Smooth display turned "double-buffering" of the MU* output area on or off. With double-buffering the redraw of the area is smoother, but slower. With double-buffering off, the refresh appears faster, but flickers more. (A personal taste thing!)
• The option to enable Tiny-fugue emulation. This enables JamochaMUD to emulate some of TF's "editor" keyboard controls.
• Certain MU*s may replace JMUD's title with your current location
• Gags and triggers allowing highlighting/dumping of text as well as audio hints
• Multiple simulataneous connections to MU*s
• User-defined length for command history
• User choice of aliased or anti-aliased fonts
• Back-up settings to and restore settings from a file
• Check-as-you-type spell checking for text entry
• Puppet/Zombie output can be sent to a separate window, acting like a separate MU* session.