This is one of the biggest improvements of the Mango update, and something that developers have been crying for since the very first moments of Windows Phone 7. Some – like the creative minds in that linked thread – have invented workarounds to enable this feature in some way, but of course all these efforts were futile, since the certification requirements explicitly forbid mixing both technologies. This will change with Mango, in a controlled way that allows integration of both technologies within the same application. Let's see how that works.