HP teamed up with Microsoft to build its latest flagship laptop

This isn't your typical laptop announcement post.

This isn't your typical laptop announcement post. The most interesting thing about the Spectre x360, HP's new flagship notebook, isn't its design, performance or even price. No, what's interesting about this laptop is that Microsoft helped build it. Over the course of a year and a half, the two companies met regularly to hash out everything from the BIOS, fan noise and wireless range, even obsessing over details like the screen's color gamut. The result is a well-built laptop that promises long battery life, fast performance and one clean OS install. If you've ever speculated about whether Microsoft might make its own clamshell notebook, this is probably the closest you're going to get. HP of course deserves much of the credit, but make no mistake: The x360 has Redmond's stamp of approval all over it.

Gallery: HP Spectre x360 hands-on | 40 Photos