Thank you crodhe.
In the meantime I see both Ampkit and Amplitube are not yet supported by Audiobus… so I’ll be watching them too.
I have bought both iRig and Ampkit LINK interfaces and have tried them with the amp simulation and overdrive in Cubasis. iRig is virtually unusable due to feedback but Ampkit Link works very well with no serious feedback issues. So I recommend that anybody wanting to record guitar using the Cubasis insert processing (which is all one can do at the moment) avoid iRig and instead go for the similarly priced Ampkit LINK.