So, says co-worker, now that you've seen nearly-Beta 2 before the rest of us, what's the single biggest change that will impact developers? Is it the Team Services testing and PM integration? Is it the framework additions? The ASP.NET changes, the new WinForm controls? What?
From a day-to-day developer standpoint I'd have to say the most impacting change is the polish they've put on the UI. The Framework changes are great, the C# language changes are great, Generics is wonderful, it's all good, but; from a day-to-day standpoint when you're banging out code, those little polish items are so nice....
-Andy