How to Help

Non-developers: No coding involved!

Testing, testing, testing!! and reporting bugs, missing features,...
Artwork!! for the application, the webpage, and the wiki.
Screenshots and GUI-mockups would be useful for documentation.
Translations: Check which translations have already been started before you work on them.
Integration/Cooperation with other tools (ktechlab, gpsim, ...)
Writing documentations: just edit these wiki pages: Graphical IDE, Command-line Utilities,...).
Fill in information about devices: Some devices lack information about programming voltage or descriptions what each pin of a certain package is. You can find the files to be updated in "piklab/src/devices/pic/xml_data/". Every device is saved as an xml file.
Generating USB logs of the communication between programmers and MPLAB (see Snooping on USB); needed logs: ICD2 debugging for chips not supported yet by piklab (12F, most 16F, 30F), ICD1 debugging, ICD2 low-voltage erasing, ICD2 programming of 18J devices.

USB support under Windows for Pickit2 with libusb; also parallel port support.
Compilation under Mac OS X' (command-line with Qt and maybe interface with KDE) then figuring out USB, serial, parallel port support.
Fix USB for FreeBSD and other Unixes.
Writing tests probably with QTest (Qt4).
Fix chip memory checksums: some work but most are broken and I just can't figure why...
Generate Debian Package: would be nice for users
Windows Installer: Maybe with NSIS
Look into the TODO file and send your patches.