Trekker
The Victor Trekker, designed and manufactured by HumanWare (previously known as VisuAide), was launched on March 2003. It is a personal digital assistant (PDA) application operating on a Dell Axim 50/51 or later replaced by HP IPAQ 2490B Pocket PC, adapted for the blind and visually impaired with talking menus, talking maps, and GPS information. Fully portable (weight 600g), it offered features enabling a blind person to determine position, create routes and receive information on navigating to a destination. It also provided search functions for an exhaustive database of point of interests, such as restaurants, hotels, etc.
The PDA's touch screen is made accessible by a tactile keypad with buttons that is held in place with an elastic strap.
It is fully upgradeable, so it can expand to accommodate new hardware platforms and more detailed geographic information.
Trekker and Maestro, which is the first off-the-shelf accessible PDA based on Windows Mobile Pocket PC, are integrated and available since May 2005.
The Trekker is no longer sold by Humanware; the successor "Trekker Breeze" is a standalone unit. The software has fewer features than the original Trekker.
Read more about this topic: GPS For The Visually Impaired