I have been dabbling with Arduino for a while and would like to start a proper project. I was hoping to create a modern AlphaSmart-type device for on the go writing (literally just saving word splurges to a file system that I can then send to my PC over a wired or wireless connection) and wondered whether anyone had any pointers for where I could get started?
By looking for an adequate keyboard. The tiny display of the AlphaSmart is no problem and you don't need much processing power for such applications but a good keyboard is probably needed.
Realistically, I'd look-into the Raspberry Pi. It's a little "single board computer" complete with a operating system (including a file system), a port for a standard display, and USB ports for a keyboard, mouse, or thumb drive. With the Arduino all of that is additional and non-standard.
Or, just look for some kind of note-taking app for your cell phone.