If we had native support as opposed to libhybris it would be lighter. We might be able to build Mer userland and rely on upstream kernel drivers instead of needing the whole Android environment. It depends if we still have enough RAM to do that and if Sailfish can run without Android.

Only reason I bothered with Mer userland was it didn't need as much to get MCE and DSME running. It probably has more Devs working on it than just those around here.

Wayland has IIRC been run on N900. I think it was slow because of the texture code in driver.