BeagleBone Black

Rev C (2014) has 4GB flash on board so it comes with Debian pre-installed. My older board has 2GB but I can use a MicroSD card for additional space.

Rev C BBB's are available for $55 from various and sundry including Sparkfun and Adafruit and Mouser.

The official site is http://beagleboard.org/

TI Sitara processor http://www.ti.com/tool/linuxezsdk-sitara

Reason to use BBB instead of RPI? Android used to be my answer. I don't have a good one right now, just using it because I have it.

Capes

Device Tree Overlays: https://learn.adafruit.com/introduction-to-the-beaglebone-black-device-tree

Code: https://github.com/ArcadiaLabs/chipsee-bbb-exp

I really want to be able to use this cape, because I paid money for it and it has so much functionality.

http://Chipsee.com/ 7" LCD touch screen includes

   7" Capacitive Touchscreen; 1024 x 600 resolution
   5-point capacitive touch, with Armorplate Glass
   3-axis digital accelerometer
   1 audio out
   1 mic- or line-in (configurable via Jumper)
   2 RS232 ports
   2 RS485 ports
   1 CAN bus
   Buzzer
   5 User Keys
   Power button, Reset button and LED's
   5V DC input (5.5/2.1mm coaxial style)

I probably bought mine at Logic Supply, but they are gone now too. They had downloads for it.

Looks like the page was archived, https://web.archive.org/web/20161004020108/https://www.logicsupply.com/bbb-exp-c

The file I am looking for is Chipsee-BBB-Linux-Source-20130902.tar.gz