Depends on the type of riding. My full touring bike had wide drop bars, but I used the top bar and brake hoods mostly, and the drops rarely. The Bike Friday STI Touring bars (a kind of combination of H and Bull-horn) look like they would provide enough hand positions for longer rides. But you might want the drops if you're looking for a more aerodynamic position.
Going by pics alone (caveat), both the sti and "h" touring bars wouldn't do it for me because the main section looks so straight, i.e. no "ergonomic" bend(s). Might be ok if you primarily hold the ends though.