A BT spokesperson said: "We're sorry we had to postpone the full launch of the next generation text service.
A full launch will then follow with Freeview's 8 million-strong customer base the "bullseye" for TalkTalk.
These users will help shape the site, with its full launch to all users to take place in October.
On full launch, later this year, Pangaea will be managed by its own sales team, meaning advertisers will have one port of call for all their Pangaea needs.
The camp's founder, Jean MacDonald, is now preparing for a full launch in August, with the help of a fundraising campaign on Indiegogo.
The prospectus reveals that Baboom plans to launch an "open (controlled) beta" in the third quarter of 2014, before a full launch by the end of the year.
Guardian Membership is in a soft-launch beta phase to fine tune the proposition, with a full launch expected in January.
Woo says that Facebook are looking for European charities to test it further but cannot say when it will be ready for a full launch.
Conway believes it would take about five months to get a service running operationally, with March next year a realistic timescale for a full launch.
