>>>I see Oracle has a beta out (that was supposed to be a production release this year).
>>>I hear Microsoft's EF4.x is somewhat compatible.
>>>I hear there are third party providers.
>>>
>>>Anyone tried using any EF with Oracle?
>>
>>To tell you the truth, I wouldn't even try. I have nothing to base that off of besides my prejudice against EF. I'm stuck using it now, and I really miss NHibernate.
>
>I haven't tried NHibernate yet (I'm still digesting EF, Silverlight, RIA, LINQ to Entities and all kinds of new crap that I never used with ASP.NET).
>
>What makes NHibernate better?

Disclaimer: It has a huge learning curve, and can be frustrating as hell.

I like it because it seems more natural to work with, and I find less architectural limitations than I do with EF. I'm not sure how it works with RIA, since I'm still a Silverlight newbie. I recently switched jobs and we use EF here, but 6 months ago I was writing some high quality NHibernate queries.