(like everyone else ?) I've finished reading the C#3 Spec and the LINQ project overview.

with samples like:

public void Linq43() {
   List customers = GetCustomerList();

   var customerOrderGroups = 
         from c in customers
            select
               new {c.CompanyName, 
                  YearGroups =
                     from o in c.Orders
                        group o by o.OrderDate.Year into yg
                        select
                           new {Year = yg.Key,
                              MonthGroups = 
                                 from o in yg.Group
                                 group o by o.OrderDate.Month into mg
                                 select new {Month = mg.Key, Orders = mg.Group}
                                }
                    };

ObjectDumper.Write(customerOrderGroups, 3);
}

Hey - that's de ja vous all over again :)

Actually it is (er..will be) much stronger than SQL - for one, you can use a single LINQ query to combine data from arrays and data and XML and whatever. Also combined with lambda expressions (next gen for anonymous methods ) you'd have even more power.

While I am on the subject of what's new in C# 3.0 - I also found Extension methods very interesting - it kind of lets you have a look and feel of multiple inheritance without the associated headaches

consider the following

And then:

oh well,enough playing - back to work...