There's a thread about GPS, where "Art" wrote some homebrew to translate NMEA output from a GPS sensor to mapping software, which I was planning to play with once I decided what to do with my 2.01 PSP's firmware. (I got my PSP in January and its still in the box, useless to me with the restrictions Sony has placed on 'homebrew')
It appears that Sony has announced the release of a GPS add-on for the masses, which Im sure I will buy. But I have an idea that could be potentially lucrative that takes advantage of the PSP's graphics/processing abilities; Its adapting the PSP to collect and display a variety of data such as Sonar (Depth finding/fishfinder,etc) similar to the (VERY expensive) Lowrance systems going for $5000 that use the new NMEA2000 protocol.
I can think of a ton of applications that a talented programmer could package the PSP with his software and destroy the competition, as the NMEA2000 sensors are not 'proprietary'. Aviation, auto, marine, telemetry,
Here are some links to what sparked my decision to post this message:
Raymarine's top end unit starts out at $4600
This *LCD* low-end unit, without sensors, goes for $850!!
The PSP couldnt do the same thing?