The 326dpi display is what made me proclaim out loud "wow", I didn't know that level of resolution was possible using IPS panels.
I will say that I'm not fond of the design of this unit: it looks too much like the handheld battery-powered Braun shavers of the 1970s and 80s that were black plastic with various metal bits sticking out, invariably becoming greasy and yucky over time. It wouldn't surprise me if this non-flush design went the same way.
I would be interested in buying this product to replace my PDA and mobile phone, and I was all set before Steve announced that 32GB is the capacity maximum for this generation. It's the first time they haven't announced a doubling of capacity. I guess I'll have to wait until next year for the 64GB version, but by then my music collection might be more than that (I've got 54GB right now).
I was disappointed by the lack of storage increase as well. I'm getting close to maxing out my 32GB 3GS. And if they ever offer a streaming/subscription service (or if Rhapsody makes their app usable offline/while driving) I'll surely need more.
I am interested to see how nice the new screen is in person though.