[nothanksmydude]

WebOS had so much potential. Unfortunately the performance was never there. There are still devices out there with WebOS powered interfaces, I believe LG borrowed bits and parts of it for pseudo smart TV/Projectors. Even the most recent ones, on hardware that should be more than capable, just don't feel responsive.

OTOH, maybe it wasn't that great. There's a lot of kiosks, car head units, set top boxes, etc out there just running extremely stripped down versions of linux or android, just for webkit. It's extremely popular in embedded circles when it comes time to put a ui on a touch screen. (for commercial products, not hobbyists)