iirc, icloud was written in sproutcore. version 2 of sproutcoure became ember which is now in version 3. there was no upgrade path from sproutcore 1 to ember, s

iirc, icloud was written in sproutcore. version 2 of sproutcoure became ember which is now in version 3. there was no upgrade path from sproutcore 1 to ember, so likely its a case of needing a rewrite and that not being prioritized.