[rsp1984]

For web stuff and just generally using mobile phones as "dumb" computing devices I agree. However there are other examples where computing on the phone makes more sense than computing in the cloud:

A) Whenever data volume is large and it would take forever to shove it up to some server.

B) Whenever offline service availability is crucial (i.e. you don't want to be dependent on network service availability)

C) Whenever you want to be in control over where your data ends up.

For example Computer Vision is an instance where these criteria are usually met.