There's a lot going on today! Not only has VS 2008 SP1 Beta been released (with the EF fully integrated into setup and including a number of new features and bug fixes), but also Jarek Kowalski, who is a really smart colleague on the EF team, put up the first blog post in a series he has written which shows some exciting ways that you can layer some code on top of the EF and achieve lazy loading. The goals for his effort are pretty ambitious, and he has achieved them admirably. You might find this code very useful, and it's also a great sign of the flexibility of the EF. I'm so excited to see these kinds of things popping up both from folks inside Microsoft and those on the outside as well. This is how we translate the work of the EF team into real value for folks on many projects.