I have just been playing with The Microsoft Inventory Sample and whilst loving the snazzy FLUENT gloss, I miss the connection of business objects in XAF.
In an XAF Windows app, the user can browse for ever without getting lost. Each lookup field can be a link to the lookup object itself. There are no modal popups to close.
The “right” way to do a Win 10 app is “Mobile First”. This means getting the screen designs all figured out ahead of time. Think hours of user consultation… workshops with coloured paper and post-it notes. Versus XAF - just get the object model right and the design will generate. The users can then customise as they wish.