unobtrusive advertisements, which will appear on the back of your Gmail Paper prints in red, bold, 36 pt Helvetica.
Sounds fair.
MP3 and WAV files will not be printed.
How lazy! Surely they could transcribe songs into musical notation with printed lyrics, use voice recognition for speech files, and have printed sound effects for other audio files.
Gmail Paper is made out of 96% post-consumer organic soybean sputum
So it can serve as a meal in a pinch... very handy.
I plan to email the entire Wikipedia to myself one page at a time and thus get a printed version. Win!