I've been doing quite a bit of LINQ & LINQ to SQL talks lately. One of the things I have told people is that INSERT/UPDATE/DELETE operations are sent in batch using DataContext.SubmitChanges(). I found out in an internal discussion today that LINQ to SQL does not batch updates. I'm a bit embarrassed and feel compelled to apologize for misleading you. Age must be affecting my memory because I swear I confirmed batch updating before I started making the statement. Maybe I dreamt it:(.
One of my pet peeves is when public speakers say something that is incorrect because they think saying "I don't know" somehow makes them look unintelligent. I didn't quite do that, but came close. I did believe I knew what I was talking about. Turns out I didn't. I am sorry.