And the biggest addition to the mix? Cortana has finally migrated from her home on Windows Phone to the desktop, though not everything works the way it should just yet. A post on the company's Windows blog written by Microsoft engineering general manager Gabe Aul confirms that the virtual assistant can take down notes and answer questions about weather and finance, but she still has a little trouble transcribing more complex reminders. And the rub? A few of Microsoft's juicier tidbits still aren't ready for public consumption. There's no mention made of the new Project Spartan browser or the company's updated take on Office, but they're expected to become available to Windows Insiders later this year. Patience, grasshoppers. Meanwhile, the rest of you can mosey over to the Windows Insider site to take Windows 10 for spin right here and now.