>Hi,
>
>I didn't mean to imply that it was just a re-hash. But I got the idea that it expanded on the same principles (maybe in the same way that WCF moved on from web services) ?
>But that was based on a 5 minute skim so I may have completely got the wrong end of the stick.....
>
>>MEF is more than that. VS2010 add-ins use MEF.
>>
>>>Haven't really looked at that - but from a quick skim it looks like a new take on the Prism/Unity stuff ?

There is a very active developer community at mef.codeplex.com. I am not ashamed to admit those folks are way smarter than me.