As of the 2.2.0 version of the app (released June, 15 2014) : YES !
Now, when you add a Vera system to ImperiHome, you have the choice between UI5 and UI6/UI7 :
!! Warning !! : Please note that it is not possible to transform your existing Vera UI5 ImperiHome configuration to Vera UI6/UI7 : you'll have to re-create it in ImperiHome.