Browsing through some of the older posts in this community has intrigued me, hopefully you guys don't mind answering two more questions (the third is just for kicks).
1. When identifying notes, do you use an internal tuning fork in your head and compare, or can you easily identify a note just by listening to it? (A psychology study at my University was testing this principle)
2. What are your perceptions on hearing impaired people (if you can, state the degree of deafness) - do you think they can develop perfect pitch as well?
3. Does it irritate you when pianos are out of tune but you have to deal with them on a regular basis?
The reason for asking Q2 is because I'm hearing impaired myself but can almost correctly identify any note (any errors I'm usually off by a semitone, but it also depends on the instrument that's playing it) that falls within my instrument's range (cello) save for the extremely high registers. Ever since I discovered that I had near-perfect pitch three years ago I've been intrigued to no end about this topic.