backlight4you offers replacement backlights for the MP2100 and MP2000. Newton owners knowing the good from the bad end of a soldering iron should be able to perform the operation themselves, once the original backlight has grown dim.

The second-hand shop MacFundgrube (based in Vienna, Austria) has a special section for Newtons and accessories.

Mailorder / memory and modem cards, Newton keyboard, battery packs, and other Newton accessories.