We currently have some historic versions of the BCP on Community Pricing.
Of much more use for present day congregations, especially for integration with "Proclaim" to simplify creation of Liturgical Service presentations and thus significantly increase the utility and market for Proclaim, can I suggest Logos take a very serious look at making available books of the current version of the BCP (1962 Canadian revision)and the Book of Alternative Services for the Anglican Church of Canada, plus Common Worship for our brothers and sisters in UK and Europe, plus current versions of similar Roman Catholic and Lutheran liturgies.
http://prayerbook.ca/the-prayer-book-online
http://dl.dropbox.com/u/4905842/Liturgy/BAS.pdf
http://dl.dropbox.com/u/4905842/Liturgy/BCP.PDF