"Xeel" was the codename for a set of hardware-based navigational controls designed by Microsoft to create a simplified and consistent user experience for devices running the Windows operating system. "Xeel" was first demonstrated during Microsoft's WinHEC 2003, where it was characterized as a result of the synergy between hardware and software. Microsoft stated that its design goal for "Xeel" was to create a consistent experience for hardware devices that equaled the software interface consistency introduced by the mouse scroll wheel.
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- Microsoft. (May 6, 2003). "Bill Gates Unveils Next Wave of Windows PC Innovation at WinHEC 2003"
- Olavsrud, Thor. (May 6, 2003). "Microsoft, HP Show Path to PC Renaissance"
- Microsoft. (May 7, 2003). "Speech Transcript - Will Poole, Windows Hardware Engineering Conference (WinHEC) 2003"