We can feel that inside the company, too. I joined the company right before we launched Windows 8 as a Developer Advocate and I have to admit that there was a bunch of stuff inside W8 that made Windows devs need advocacy.
Shortly after Satya took over, a bunch of things quickly changed. We founded an open source team. I'm contributing to and writing open source code full-time. My team is literally tasked with 'building epic stuff and putting it on GitHub". The common reaction is of course "Wtf, Microsoft paid you to hack with us here? On GitHub?" - which makes sense, because such a team wouldn't have existed three years ago. There's definitely a different vibe in the company (at least in the developer-focusses teams I'm working with).