Hello, as version 4 stuck atm I've built own version, based on Entities and Entities API. This gives out of box support for Views, Rules, etc.
moved to d.o.
State of this version need a lot of work and its state between dev and alpha, I think, but it is working and usable. So feel free to test and report issues.
I would love to get maintainer permissions on this module and continue develop this version, but it will be finished to some state anyway, so your reports are very welcome and appreciated.