The Amcor Navigation 3900 GPS product boasts many of the high quality features found in more expensive brands in the market, including high resolution screen, outstanding mapping software, 21 pre-programmed languages, easy-to-use operating system, stylus, and high quality industrial design. The unit features navigation, MP3 and MP4 playback, photo viewer, lighter charger, and internal battery that enables the unit to operate for up to 4.5 hours, for use out of the automobile as a personal navigation or entertainment device
For my $$$ I like the TomTom One 3rd Ed. Picked one up yesterday at FS. Online tools to update info etc. etc. Not sure about all these lesser known brands.
Tigerdirect also has the Pocket Loox for $120 which is kind of interesting, but apparantly the UI is pretty slow.
Amcor GPS is similar to Mio, it uses TeleAtlas similar to TomTom. It is good for the price but if you want reliable future support. Go with TomTom or Garmin.
I couldn't find the online flyer but here is the US flyer for the same promotion