So, I'm starting to understand the project is either DIY or something I don not have skills for. Compact case prototyping requiring a lot of PCBs with extra small size which require SMD soldering and I'm not good at that.

So, DIY project.

Currently playing with Software parts on Raspbian Qemu image (Adafruit WebIDE didn't work - required Kernel options which are not in the quemu kernel, trying Pydio now, works like a charm on Raspberry actually, like it so far but looks to heavy for my project, will try to utilize some parts of it)

So, surfed the web in a search for hardware components. For now I'm thinking about the following:

• LiPo Rider. It provides battery charing via USB as well as solar charging capabilities. http://www.seeedstudio.com/wiki/Lipo_Rider_V1.3
• USB Hub for PiZero. Soldered right beneath the Pi Zero board https://oshpark.com/shared_projects/on4CCBXp
• Something similar to this. https://oshpark.com/shared_projects/rMr4Go5j But with different type of I2C header, so that the following can be plugged right to the case. http://ru.aliexpress.com/item/Dealward-Limited-Sales-New-0-96-I2C-IIC-Serial-128X64-OLED-LCD-LED-Display-Module-For/32339700489.html
• Something like that, or just a GPIO Hat pinout for AVR ISP programming. https://oshpark.com/shared_projects/EaQPleXM

So, with that we have pocket device, with charging ability, solar charing (or pretty much any other powerfull enough source), UART pinout, I2C Pinout, ISP pinout. Also some sort of GPIO still available (preferrably in the unchanged Raspberry GPIO header), 4 USB ports, HDMI port, Video-Out port

Thinking about creating a super tiny querty keypad on the top side of the device. So that you just need to plug one of these super cheap I2C OLEDs and start doing your stuff.