Well not even a week after the last update which introduced some new features we get IM+ going to version 1.8 and adding Mango support for fast-app switching, at least according to Shape Service's Facebook page.
If there was any app that really needed this feature, it'd be IM+ just do to the nature of how instant messaging apps are used.
So how does it feel? Honestly, we still see a "resume" screen which doesn't make us feel too excited and there's no other advanced Mango features--no pinnable contacts, the live tile doesn't seem to be double sided, etc. It feels kind of the same as before. But hey, if you find anything new, hit us up on comments and let us know!
Grab IM+ v1.8 here in the Marketplace. Thanks, Sedp23, for the heads up!