I haven't missed a thing today, but I am impressed with one area you were so-so on: battery.
When I had my iPhone 3G, and I was out and about all day, I had to switch 3g off. This would mean that if I was using googlemaps, I would inevitably miss calls (they got bounced to VM more often than not).
I left everything on today (wi-fi, 3g, gps etc) used gmaps, games, sms, email, calls. The lot. Really tried to wear her down. I still have 30% battery left now - which I think is amazing. Even my Blackberry Curve wouldn't have that stamina.
Because I move around so much, I can't honestly comment on signal. All I can say is that I am happy with it's performance.