Like many people with technological and Greek backgrounds, I aspire to have/make all the relevant texts for NT studies available in the most open and usable formats and licenses, as a basis for writing analytical and educational software. The holy grail is a reasonably modern text, good enough for language education if not for academic use, which can be CC-BY-SA licensed like Wikipedia, and then collaboratively maintained online without any licensing concerns.
I recently came across a pair of GNT and LXX texts at the Antioch site. According to the person who hosts them there, they circulated online for some years, were corrected or updated by many different people, and are now orphaned, so that no-one has a clear claim of copyright on their current forms.
The LXX is a ~7 Meg Word Doc, and is introduced as follows:
BIBLIA GRAECA IVXTA LXX INTERPRETES
Totus fere textus cum Vetere Graeca versione congruit, discrepantes tamen versiones librorum Judicum et Tobit ponuntur: Codicis Alexandrini versio sub littera A, Codicis Vaticani versio sub littera B et Codicis Sinaitici versio sub littera S. Adaeque producuntur binae versiones librorum Susannae, Danielis, atque libri qui inscribitur Bel et Draco: textus Vetus Graecus sub nota LXX, et versio Theodotionis.
I was told that it this version of the LXX derived originally from Rahlfs. Can anyone here tell me anything about the history of this version of the text, or any information that might help me establish it's copyright status or risk?
My current plan is to pick about ten textual and interpretive cruxes and compare them with the major academic Greek texts, to see if this text has been conformed to one or another in any consistent way. If so, then I won't be using it. Otherwise, I think it's a candidate to release under CC-BY-SA.
 http://www.hancock.dircon.co.uk/antioch.htm (see under "Free Extras", halfway down the page)