Recently I am looking for an ergonomic keyboard to replace my old samsung pleomax keyboard. I wanted to buy microsoft natural ergonomic keyboard 4000 but that is not in the market and the only other keyboard I find is logitech ergonomic keyboard K350.The keyboard is very comfortable to type and works out-of-the box with linux. But the thing is that it is wireless and after a search of "wireless keyboard security" on google i am a bit paranoid about using any wireless keyboard.Also I did not find any encryption option if used by the keyboard while using the logitech provided setpoint software on windows XP and logitech site does not mention if the keyboard uses encryption.Does this keyboard uses some hardware in-built encryption that logitech does not divulge ? If others on the list are using wireless keyboard, what are your experiences and recommendations ?