Some Games/App are available only for one OEM. Let's take Nokia for example.
I buy a game called RISK (exclusive to Nokia) in my Nokia Lumia 800.
Several months later, I buy another phone. For example, the HTC Windows Phone 8X.
In Windows Phone, app purchases are associated with your Microsoft account, so you can transfer them to a new phone. Does this apply to OEM-exclusive apps as well, even if the new phone was made by a different OEM?