Spidwit alternatives

First of all, this is a great idea that is truly useful. I love 360 images, but have found it hard to show others.

Could reallly use some preset animations - 360 orbits in 2 seconds, easing in and out for example. Don't make me think about animation timing (and if you do make it a real animator with keyframes).

Also the format exports are weird. Where's is standard HD (1280x720, 1920x1080) or square formats? And why not .mp4, which has generally become the standard for video?