This one action will be a significant reason HTML5 may not ever replace native apps. With better GPU's (Google Nexus 7: 12 cores) hooked directly to the HTML engine (still to be implemented), and a Sandbox, and hardwareI connectivity (Mozilla is tackling this), and cursor-based data, that day could some soon. Without any one of these pieces, it will be a long way off.

>>>I had the name wrong: SQLite was the one. With it in place, disconnected data is a snap, as much as disconnected data can be a snap. Without it, you are back in the dark ages.
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>Amazing, really: Dr Dave "got" the need for local data over 20 years ago when mainstream vendors were still wed to terminals (and lets face it, a data-less browser is just a prettied-up terminal...) Seems to me that the phone is where the PC was in those good old days when IT really was changing business rather than coming up with self-indulgently clever/complicated ways to do the same things over again.