MindNode is a free and very easy to use mindmapping application. It was created with the user in mind and features a very simple interface for quickly creating visual appealing mind maps.

Website
Download MindNode

Itsy is a small, simple Twitter app for your Mac.

Itsy won’t hog up your screen or do other crazy things.

• See and send tweets, replies, DM’s
• Mentions integrated into timeline
• Inline yfrog and twitpic viewing
• Reply chains
• Growl notifications
• Twitter Search

Website
Download Itsy

Mjograph is a simple but highly functional 2D plotting program. MjoGraph is well-customized for scientists or researchers who work with computer simulations and want to visulalize results quickly and easily. What’s more, Mjograph offers a lot of tools to create beautiful graphs.

Main features:

• plain user interface
• just drag and drop data file(s) you want to plot
• interactive zoom and scroll with the use of mouse action
• export as EPS, PNG, etc.
• simple tools to draw annotation objects (line, circle, and text)
• directly embed mathematical expressions
• various plotting methods (line, pulses, step, region, and spline)

Website
Download MjoGraph

TunesArt offers new features for iTunes : displaycover art and track information on your desktop (many themes available), get notification on track change, display bezel notifications on play/pause/next/prev, search your iTunes Library, scrobble to Last.fm, display/edit/download lyrics, support for Growl notifications, artwork fetching from Amazon…

Website
Download TunesArt

TimeMachineEditor… Change the one-hour interval of Time Machine backups. You can change the interval or decide to make daily, weekly and monthly backups.

TimeMachineEditor does not modify existing system files at all. Instead it handles its own scheduling to trigger Time Machine backups when you want them to occur.

Website
Download TimeMachineEditor

VLC Media Player is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg, …) as well as DVDs, VCDs, and various streaming protocols. It can also be used as a server to stream in unicast or multicast in IPv4 or IPv6 on a high-bandwidth network.

Website
Download VLC Media Player

FlyingWindows is an application to enables you to work in Single Application Mode. It is different from other Single Application Mode apps, in using window minmimization or unminimization in this mode. The application can also minimize and unminimize windows in slow motion. Windows fly in and out of the dock.

Website
Download FlyingWindows

Transmission is a fast, easy, and free multi-platform BitTorrent client.

Transmission sets initial preferences so things “Just Work”, while advanced features like watch directories, bad peer blocking, and the web interface can be configured with just a few clicks. Macworld put it this way: “It’s fast, it’s extremely lightweight, and — even though it’s available for a variety of platforms — it behaves just as you’d expect a Mac program to.”

Transmission supports full encryption, file selection, a web-based interface, groups, peer exchange, automatic port forwarding, webseeds, watch directories, tracker editing, global and per-torrent speed limits, and more.

Its code is freely available online and is licensed under either the GNU Public License v2 or the MIT License. The development team welcomes anyone who is interested in contributing code, documentation, translations, or other help.

Website
Download Transmission

LiveQuartz is a simple and powerful free photo editor for Leopard. It is based on non-destructive layers and Filters. The layers are at the left and the Filters are at the right of the window.

To edit a photo, just drag it into the window (or layers’ list) and it will be added as a new layer. LiveQuartz handles Multi-Touch Trackpads.

To edit a photo, just drag it into the window (or layers’ list) and it will be added as a new layer. LiveQuartz handles Multi-Touch Trackpads. You can watch a screencast of LiveQuartz in help menu or with this link: http://www.rhapsoft.com/?menu=livequartz_video

Website
Download LiveQuartz Image Editor

MagicPrefs is a toolbar application for OS X which aims to improve the functionality and configuration options of the Apple Magic Mouse.

It features the ability to bind a variable number of finger clicks and taps to functions like Middle Click , Hold Down Both Mouse Buttons , Spaces , Expose, Dashboard etc.

Tap Sensitivity implements a advanced algorythm that impacts a number of factors used to determine taps , all controllable by a single slider.

Tracking Speed adds the ability to increase the maximum available speed by a extra 25%.

And to top it all off it features a real-time display of the fingers touching the surface of the mouse that you can enable to test and monitor the way the mouse sees your input.

Website
Download MagicPrefs