lemontree provides a very fast Java class for the Walsh Hadamard transform (WHT) and O'Connor transform (OCT). You can regard the OCT as a black box which turns arbitrary numerical data into data with a Gaussian distribution. There are inverse transforms, also. It has many applications, such as Random Projections, Compressive Sensing, Neural Nets, and Genetic algorithms.
libjpeg-turbo is a high-speed version of libjpeg for x86 and x86-64 processors. It uses SIMD instructions (MMX, SSE, SSE2) to accelerate baseline JPEG compression and decompression. libjpeg-turbo is generally 2-4 times as fast as the unmodified version of libjpeg. It also includes a wrapper library for the TurboJPEG API used by VirtualGL and TurboVNC. It was originally based on libjpeg/SIMD but has improved support for Mac OS X, 64-bit platforms, 32-bit and big endian pixel formats (RGBA/BGRA/ABGR/ARGB), accelerated Huffman encoding/decoding, and various other fixes.
VPPPN stands for virtual peer-to-peer private networking. The project provides a VPN client using a custom protocol to be able to set up a point-to-point dynamic virtual network. This differs from OpenVPN in that it does not need a central server to pass the network's traffic. A central server exists to allocate IP addresses and provide a point of contact for the clients, but once connections are established, these services are no longer needed. This means that a VPPN network is free (as in beer), since to set up a network you do not need to invest in an always-on Internet server. Once established, a VPPPN network behaves in a similar way to a normal IP network. To the end user, this means you can set up an office network and drag and drop files between computers in a secure manner over the Internet.
Wendland TD is a German Tower Defense like game. In this game, the player's goal is to stop a truck or train (you can choose between a street or rails in the main menu) by placing obstacles like garbage, cows, or other trucks on the road/rails. This game is only available in German, because it is related to events that are actually happening like this in Germany.
Giada is a minimal, hardcore audio tool for DJs and live performers. Just pick your sample, drop it in any channel, and start the show by using this tiny piece of software as a loop machine, drum machine, sequencer, live sampler, or effect (VST) host. Giada aims to be a compact and portable virtual device for production use and live sets.
MrsWatson is a commandline audio plugin host. It takes one or more plugins, sends an audio signal to them for processing, and saves the resulting output. Although the plugins think they are running in realtime, processing is actually done offline (this is not the same as the "offline" processing in VST terminology). This makes MrsWatson ideal for developing or debugging plugins, or processing audio on a server.