Proporta has announced a tiny GPS receiver, weighing just 30 grams (just over an ounce) and measuring 49x32x19mm (2×1.25×0.75-inches), making it one if not the most compact and neatest GPS receiver available. Working from your pocket, handbag or briefcase, it is compatible with all the mapping software currently available.
It uses Bluetooth, allowing you to connect it to your notebook, PDA or mobile phone. It will run up to 9 hours and can connect with up tp 20 satellite channels simultaneously (it uses the SiRFStar III chipset). It works with all popular mapping software currently available (none are included) and comes with both USB charger and car charger cables.
The Proporta Freedom Keychain GPS Receiver is available for USD$129.95 directly from Proporta.