The new APM  use MAVlink protocol for transmitting data . APM hardware can be configured as miltirotor , plane , heli or car .

  

Here is software wrote by user "hazy" who ported MiniOSD firmware to remzibiOSD hardware 

 http://diydrones.com/profiles/blogs/port-minimosd-to-remzibi-s-hardware

 http://code.google.com/p/hazys-osd/

So for now I reccomend to use it with APM autopilot.

I will try to add MAVlink to OSD in future .

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Lastly I had opportunity to have APM of my friend to change microprocessor from Atmega1280  to Atmega 2560 as the new firmware need more flash space and the older was let say "useless" , new Atmega2560 was programmed with bootloader and proper fusebits .

So I had opportunity to try to connect it with remzibiOSD .

Finally , reprogramming remzibiOSD using links above and connection to APM is very easy .

All set works at once as expected .

So first of all we need to have APM and use latest firmware , in my case it was ArduPlane_2.65 APM2 download side

Software package include all files like firmwares , Mission Planer etc . 

Firmware to APM was programmed by Mission Planer so not need to compile and program by Arduino IDE . 

Here is APM guide , I recommend to read it .

Next we  must have remzibiOSD hardware and download hazy's software  .

First of all we connect remzibiOSD using USB cable and we run hazy's ConfigTool .

We set language , NTSC or PAL system , correct port com number , etc. 

Then we set Options->UpdateFirmware and we show path to new OSD firmware , then we connect power  to remzibiOSD board - firmware will start to update automatically (it use bootloader already included in remzibiOSD) . 

Then we must update font table so choose Options->UdateCharSet  - after few seconds new font are in place .

Then we can add or remove information from screen and place any information when we like (very similar to original remzibiOSD GUI).

All hazy's guide we have here 

The last is to made hardware connection - this is very easy .

If GND of Video(OSD) system is connected to GND of main(APM) system battery then we need only one cable , connecting pin OUT of AMP telemetry output to remzibiOSD RX pin of GPS port . Like on this picture :

 

GPS to work with APM2

Another questions about possibility to hardware connection remzibiOSD's GPS module to APM .

Yes it is possible .

On APM board is pinhole row for such connection , the only we need to solder in gold pins for GPS module :