Got this phone this week and I must say I am impressed with all the improvements over the S3. At first I thought they were not really significant, but in actual fact there are some really good improvements. My favourite is the way it works now with a flip cover.
See https://plus.google.com/u/0/112580063909169692065/posts/Wuer1Hc8WAD for more observations.
The tablet was on it's way but got caught in a Christmas shutdown by the courier company (what a time of the year for courier company to shut down)... so it is about 13km from my house but not moving any closer for the next two days!
Busy testing the new Motorola Xoom 10" tablet out this week..... first impressions are I love the working size and tablet specific OS and apps - seriously usable, but on downside I'm uncomfortable carrying a 10" with an exposed screen after using a 7" before, and I'm finding the numerous and changing Motorola navigation buttons a bit confusing (OK I should read a manual).... in another week I'll be testing the new Samsung Galaxy 10" tablet so will be able to better compare the 10" models at least...