How many people in this day an age still use 800x600...
But regarding seeing more, yes we'd see more in a sense and just the same in another, since we're not REMOVING those elements just moving them, it just covers another area on the screen.
The avatar/hp/mp/level part was never ingame (not the one on this interface anyway) and it doesn't feel right to me having it in the top left, the minimap was just thrown in since it could be done with that, the range of casting should be the same in both reso so I see nothing wrong with it.
Me when running 2 Mir's off laptop, it goes nuts if I run 2 at 1024.
If it doesn't feel right use the basic interface. Can't complain that hasn't been ingame since day 1 :P
That's exactly the problem I described: range of casting. It's not the same on both resolutions, as I can cast on mobs at the left/right edges of my screen running 1024, whereas someone running 800 wouldn't even see them on-screen.
In order to make it the same not just between resolutions but between layouts (default, tiny, custom tiny) you'd have to reduce casting range to ignore all of the areas taken up by all elements of both the default and tiny interfaces.
Practical example, to better illustrate what I mean.
You're using a custom layout based on the mini layout. You move the avatar + HP/MP bars to above the potion bar, to get a better view of what's above you. Now you can't see mobs that are above the potion bar, but you can see mobs where your avatar/bars used to be. Trouble is you can't cast on those mobs, as it would be unfair for you to be able to cast on them while someone who doesn't use a custom layout can't.
I think that's how Sam/BH want it to be (nobody having an advantage based on UI layout), considering that when using the mini layout I can't cast on mobs that would be hidden by the standard HP/MP orb/chat window on top of not being able to cast on any mob behind any element.