The ATLAS (Automatically Tuned Linear Algebra Software) project is an ongoing research effort focusing on applying empirical techniques in order to provide portable performance. It provides C and Fortran77 interfaces to a portably efficient BLAS implementation, as well as a few routines from LAPACK.
Plucker is an offline Web and eBook viewer for Palm OS-based handheld devices and PDAs. It comes with Unix/Linux tools and conduits, and Windows and Mac OS X conduits that let you decide exactly what part of the Web you want to view on your PDA (as long as it's in standard HTML or text format). The requested Web pages are processed, compressed, and transferred to the PDA for viewing by the Plucker viewer.
Weasel Reader is an e-text reader for Palm OS. It is geared towards reading Project Gutenberg e-texts, but will work on any ASCII file. It uses zlib for compression, resulting in good file sizes, an important consideration for Palms. Weasel reads both zTXT (its own format) and PalmDoc files. It includes features such as bookmarks, annotations, categorization, searching, beaming, VFS access, and many display options. Also included is makeztxt, a command line program to generate zTXT databases. makeztxt supports regular expressions to automatically generate a list of bookmarks. Java and Perl/PHP versions of makeztxt are also available.
The pilot-link suite of tools contains a robust library and a series of conduits for moving information between your desktop or workstation and your Palm handheld device, such as those made by Palm, Sony, Handspring, Handera, and others. It also includes language bindings for languages such as Perl, Python, and Java.
Keyring for PalmOS lets you securely store secret keys and confidential information on a PalmOS handheld computer. This information might include computer account passwords, credit card numbers, GnuPG or PGP passphrases, SKey one-time-pads, or phone banking keywords. Records are encrypted using the well-trusted DES3 algorithm on a master password. When you need to set a password, Keyring can generate a random password of specified length, optionally including letters, numbers, or symbols.
SuperWaba is a VM for PDAs. Because of the way it was written, you can use Java to develop programs for it. It supports exceptions, threads, many user interface controls, double and long 64-bit types, grayscale, color, 3D controls, and JNI and Java libraries, among other features. The project has been superseded and replaced with TotalCross.
Ostiary allows a client to run scripts on a server in a secure, authenticated manner, using an extremely simple protocol that is immune to buffer-overflow attacks. It is useful as a limited ssh/lsh replacement, or to selectively enable full remote shell access on a temporary basis. Clients for Windows, Unix, iOS, Android, and Palm are available.