A lot of people seem interested in using the parallella as a flight controller for drones/multirotor platforms for doing various forms of enviromental analysis. A daughterboard specifically made for this would thus be very interesting...
Personally I would like to see:
* Flexible I/O that can connect to receivers typically used in drones, now I'm uncertain if it's possible to interface w. 5v logic in both directions... can we?
Typically the connections are three pin headers w. 5v, gnd and a pwm signal. This goes for input AND output.
* some new ESCs (electronic speed controllers) that are being developed will have I2C and CANBUS so this is also important.
* Barometer, Accelerometer, Compass, Gyro... these should be of very high quality of course
* One high res ADC for battery sensor, ultrasonic etc
* Maybe additional High speed USB? 2.0 or 3.0? for connection to kinect or other depth sensors for 3D mapping?
* HDMI input for image recognition and processing?
* Composite video output for transferring video via typical analog video tx?
* 3G/4G module? Xbee connector? Something else?
* Onboard regulator and voltage sensor for connection to 1S up to 6S lipo?
What are your thoughts? What does your application need? I think parallella is the ideal robotics brain so I think it's in everyones best interest to create a base platform that has enough features and flexibility for all our robotics needs. To make sure everyone is happy with the result I think we should pool our resources and ideas to make the ultimate daughter board for this.
Personally I wish to help launch an open, crowd-sourced and free 3d-wiki-earth map, where drone users and next-gen smartphone (w. 3d cam) users can help map our earth in high resolution point cloud data that can be freely used in non-profit research, entertainment, games? I realized there was a need for this when I wanted to build procedural sci-fi game where the game world is based on a real model of the earth in a worst case global warming scenario 500 years from now. Finding free data proved to be nearly impossible, only very low resolution data was available. Imagine how an open system could change this, not only could we map height in high res, but also weather, spectral information for geological and plant life analysis etc etc.
These are exciting times!
Here are some current offerings:
Multiwii Mega
Ardupilot Mega 2.0
PX4FMU