Check online reservation platform for multiple hotels/ B and B models iScripts ReserveLogic at https://www.iscripts.com/reservelogic/
A beta is out for the reservation software at http://www.iscripts.com/reservelogic
This is a fairly complicated feature at this point. However its planned. We will start with couple of products and later adopt to all products
We are working on new version. It will support enom, directi, and godaddy along with an offline option
We have started working on Directi, and netearthone. as onlinenic is having legal issues we are skipping them. We might consider opensrs. not sure yet. Also not sure about godaddy api as its $400 if you want to use it.