I own Sony reader. I have flown with it 12 times here in Europe. No problem. I was even using in for reading on board.
You are allowed to bring a laptop, camera, pda, gameboy, fancy watch, calculator, mobile phone on board. So why not bookreader? You will claim it is a pda. And pda is on the list of allowed items (see link in the next paragraph)
I usually keep my Sony reader in a flat tin box(**) in the pocket of my notebook carrying case. You have to remove the notebook from the case. I was never asked to remove the Reader. I was not even asked to open a metallic box I use for protection of Reader.
I was looking at the TSA site
http://www.tsa.gov/travelers/airtrav...ted-items.shtm
when I asked my friend to bring a Sony Reader for me.
She was allowed to take it on board. No questions asked.
Disclaimer:
I do not know how stupid the regulations are in the USA *at the moment*.
USA usually manages to exceed my expectations regarding the stupidity of laws, rules, patents, regulations ...
(**) I have purchased a set of thread cutting
taps and dies in the Lidl chain market here in Europe for cca $10. It came in a nice sturdy metallic container perfect for carrying the Reader.