I have the c-500 with the transflective display, and I use it with WXworx and GPS, It is unacceptable in my opinion. It is not readable in bright sunlight. Don't bother to replace, just purchase one of the new tablets, the displays that I have seen are much brighter. The Motion 1400 and 1300 have great displays, the tc1100 has a mcuh better display than the C500 TFT. I don't know how the Fujitsu newer units perform. Anyone out there have experience with the Fuji units outdoors?