For me what will make it break the game is the menu/inventory system. How quick can we get in and get out? Is the map that horrible Skyrim map. I just want to see it.

My best way to answer this would be to say...
Wait for the beta, that will answer all of your queries 100%.

i personally really like the map in Skyrim.

at 6:25 you can see an early version on the map http://www.youtube.com/watch?v=zchOStbwZ8k&feature=player_detailpage#t=385s

Yup. Those white icons I presume are the wayshrines.

Also, a pre-alpha dev has said the inventory is very organised and clean. I guess we'll see what they meant in Closed Beta.