Actually I think they're different enough they will have separate market segments as well as the overlap.

The T2 is more expensive and is hard-button based with a touch-screen extension - less visual and button flexibilty, but more functionally efficient.

The Pronto lets you be much more artsy-crafty, but is less efficient functionally, and I would tend to think less robust.

We're lucky to have both available. I doubt I'll get rid of my Pronto when my T2 gets here. Gotta have back-up :-).

DJ