While I was working designing electronic devices I used my N770 a huge amount for reading the copious amounts of datasheets and info I needed. I was able to save my designs to PDF and keep them on there too so I could refer to them easily.

I'm now working in other fields but I still do some electronics design on the side and I have to say the screen on my 770 is the most clear and legible screen I've seen. I love the fact that I can keep the device in my pocket and whenever I have a moment I can pull it out and check up on some details.

I think the only flaw the 770 has is it's battery life, but then this might just be because of my quirky setup. I have to charge it every night or keep it powered off.