The SSD version of the Twist definitely has better battery life, but 2 hours seems absurd. There's no way our Twist would ever run out of juice that quickly. Perhaps there's a power management bug or folks are turning of Lenovo power management and thus getting such poor runtimes?
Yes, the diff between the Core i3 and i5 is significant. Get the Core i5. But the diff between the i5 and i7 is much less significant. I find the Core i5 fine and I do more than basic productivity with my Ultrabooks.
-------------------- Lisa Gade Editor in Chief, MobileTechReview