A somewhat crazy but interesting project is the aim to recreate Mega Man 2 for the Sega Master System. Brazil developer gvx32 has put a lot of efforts into this already. All eight levels can be displayed and music is playing. Currently gvx32 works on a meta sprites to sprites function. Adjusting more music to FM. Another update might take a while. Read more about Mega Man 2 v3.0 (Master System Tech Demo)
Palettician by RG59 is an app that you can run on emulators and real hardware. You can configure all 25 colors while displaying them in real time. This will be useful for artists and designers. Read more about Palettician (02-11-2015) (NES Application)
KrzysioPlayer is a hardware NSF player based on real 6502 from Famiclone (UA6527P). The use case is simple: record your favourite NSF files onto SD/MMC cart, insert it into device's slot, choose the one you want to play with user-friendly interface (buttons & LCD) and listen to the REAL HARDWARE nsf music. The device is capable of playing up to 128 kB NSF Files. Read more about KrzysioPlayer (NES misc)
qpdfview is a tabbed document viewer. It uses Poppler for PDF support, libspectre for PS support, DjVuLibre for DjVu support, CUPS for printing support and the Qt toolkit for its interfa. Ported to Pandora by Canseco. Read more about qpdfview v0.4.15.3 (Pandora Application Port)