My vote to change official name form PostgreSQL to PostgresQL. The reason is: many young people look at PostgreSQL and think that the short name is Postgre. Sounded awfully, especially in Russian, tied to fix neighbours. With PostgresQL they will think that the short name is Postgres and this is good. Also will be opinion that PostgreQL = Postgres Query Language, this is also true, due to lack in Postgres many standard SQL features still.