Although I have not gotten to finishing tge hardware hacks to the device, I have been developing an "OS" for the SRXE that can be flashed to an unmodified device.

Features:

• Menu Based UI, with a settings page. 
• File Manager: Ability to store 31 files on the SPI flash, up to 4KB each. Ability to send/receive files over RF to other SRXE devices with the OS. 
• Text Editor
• Waterfall style RF scanner
• RF Messaging app (sorta pointless, as devices must be in same for RF to work) 
• GRK Interpreter. It is about 15x faster than Arduino BASIC is on this device.  GRK is where this device shines. A very fast and efficient interpreted language created by yours truly. Designed to be as compact as possible, minimizing whitespace and uneeded characters.