That's the silent BSOD you're referring to, right? No, it's still there, had it happen once shortly after the firmware update. I suspect some of these bugs will be with us for some time. The February update fixed the sudden restart when attaching the keyboard, but it was also an issue affecting the Surface Pro 1, and they finally got around to fixing it now. I would figure they'd have some sort of program in which they'd take in these problematic Surfaces and have them to debug as opposed to trying to recreate the issue on their test hardware.
Anyway, the touchpad is a bit better with this release.