[robrecord]

I understand that a native client for every device may be out of the question. With other services, developers take it into their own hands to create clients that utilise the other company's service or API.

The market for task apps on Android that sync with anything native on the Mac is currently covered by NO-ONE. That would mean if the Omni Group spend a comparatively small amount of time (compared to creating a native app) creating the ability to sync with just one more service (eg Remember the Milk), not only would people on Android be able to use the service, but people using many other devices too would be able to use OmniFocus as the hub of their tasks. OmniFocus would be the first one in!

Another possibility that I can see is that eventually Google Tasks will mature into a service that can sync with iCal tasks. Unfortunately, this leaves much to be desired as iCal tasks have way less information stored in them than OF actually uses.