A significant portion of my purchase decision was that OmniFocus was releasing a portable version of their program. The trouble with browser-based iPhone apps

A significant portion of my purchase decision was that OmniFocus was releasing a portable version of their program. The trouble with browser-based iPhone apps -- around here, anyway -- is that you can't use them on the subway. The GMail client on my old blackberry was like that and it was totally worthless during most of the time I was mobile. I do think that web apps with the HTML 5 database ( http://www.w3.org/html/wg/html5/#sql http://www.w3.org/html/wg/html5/#sql ) and clever caching would cover most use-cases. It does still leave email-outbox style functionality out of apps, but a simple message-passing service in the API would solve that.