Floating IPS is a patcher for IPS and BPS files, aiming for a simple interface yet plenty of power under the hood.

Features:

• Creates the smallest BPS patches of any known tool in existence, and is faster than any other comparable creator
• Creates the smallest IPS patches of any known tool in existence, too (but only yields tiny gains over Lunar IPS)
• Fully-featured GUIs under Windows and GTK+, including command line support; can also be a pure command line program
• Can apply multiple patches to the same ROM, and creates a huge pile of ROMs
• Remembers which ROMs you've used, and will use them again if it thinks it's correct (BPS only)
• Can launch emulators after patching the ROMs (combined with the above, this allows you to double click a BPS to launch its ROM)

Planned:

• Automatically enable ROM guesser (open a message box the first time it guesses a ROM, asking if you want that)
• Different emulators for different filetypes (check the extension)

Not planned (if your plans are different, send a PR):

• Non-console OSX support; I don't have the right hardware
• Qt support; my distro uses GNOME, and all distros I've seen can run both GTK+ and Qt (and QString's UTF16 irritates me)