I have an Android and I'd buy this app after making sure it works as demoed. I love the sliding email & messages on the front page. A very nice change from having to navigate to an emails-only or SMS-only page. I also like the integrated time/place/person detection for adding events to calendars. Of course, the email they showed was too obvious, it remains to be shown how well the app can recognize back-and-forth emails about timing and location. I liked the easy switching between searching for some name on the web, in mentioned emails, and as senders; that will be very useful for me. Also, the fireworks-like expansion of nodes is very intuitive.