Here's an open source project I've spent dark winter nights putting together... a window manager with overlapped windows for small-ish embedded systems with a touch screen. It works well with ARM Cortex M3 and above driving a QVGA screen. It's completely open source and non-commercial. The license is unrestrictive (MIT) so anyone can do what they want with it, & its website is advert free (apart from a link to the hosting company WIX, I don't pay for the hosting so that's inevitable). I gain...
Open source embedded window manager
Open source embedded window manager