Starting Page definition in V14 onwards

FYI we found a way to do this with help or Aras and our own fiddling.  Assuming you want to display a form that's already linked to an itemtype:

1) Edit "StartingPage List" and add the value for the ItemType with the value = name of the ItemType

2) Set this for the User from the Starting Page dropdown

3) Open the ItemType

4) Open Client Style

5) Open the _TOC_Configuration item.  If none exists, make a new one

6) Create a new CommandBarSection.  Classification:  Data Model, Location:  TOC, Identity:  whomever you want

7) Open the newly created item.

8) Add a new CommandBarItem.  ItemType:  Button, Action:  Add, Identity:  whomever you want

9) Open the item.  In "Additional Data", use : {"itemTypeId":"ID OF ITEMTYPE","formId":"ID OF FORM"}

Save it all.  Have the user logout and log back in and they should now see the Form as their landing page.