Some applications using (or intending to use) Gtk--

• terraform, terrain generator
• Quasimodo, real-time audio/MIDI Environment
• gnuvoice, a GUI voicemail / speakerphone / caller ID application.
• gtkmail, a MIME compliant GUI email client
• Radioactive, radio application for Video4Linux-compatible radio tuner cards.
• Mage adventure game engine, Creates playing interactive fiction games.
• Paloma, music management system
• Lm_sensors, mother-board sensors monitoring.
• LICQ plugin, plugin to use LICQ without Qt.
• Dachshund, an effort to create a high-quality visual modeling tool supporting UML.
• DSA Tools, character generator for German RPG (in german of course).
• PicMonger, usenet picture grabber.
• Grany-3, the cellular automaton simulator.
• Rosegarden, music notation editor, MIDI sequencer
• BINARS, MIDI sequencer

The People working on Gtk--

• Karl Nelson
• Tero Pulkkinen
• Gergo "Cactus" Erdi
• Michael "Data" Ashton
• Herbert Valerio Riedel
• Todd Dukes
• Me