I've been working in the trenches for 20+ years developing commerical products with MS technologies. Currently working with .Net and C# to develop RFI-enabled winforms apps on handhelds and other portable devices.
IronSpeed doesn't use LINQ (obviously), but since it's a few years ahead of BLINQ, it should give you a good idea about how cool BLINQ can be in the future.
One of the very cool things about IronSpeed is that you can regenerate over-and-over as your DB evolves and you don't lose changes you've made to code. BLINQ will def. need this functionality to complete.
Great video, looking forward to working with BLINQ.