I want F2FS for my phones. It seems to make storage 50-100 percent faster compared to ext4 from the benchmarks I've seen. Motorola started using it in Moto X and Moto G, but I hope Google makes it the default for Android in the next Android version.
F2FS sounds like a bit of a hack. It's basically a way to get performance out of the storage-provided flash translation layer that pretends the underlying storage isn't flash. It also doesn't have the fancy ZFS/btrfs features. I wonder if the COW that these do can be tuned to work well with flash devices.
