What are we losing?

[talmy]

The feature "Save As..." is also lost.

Do a 'Duplicate" then a "Save" or close the window of the duplicate.

I consider versions a little bit a mess. I dont want to have multiple documents in the background being saved since I wont used them ever again.

They should take little space since only the differences are saved. If you copy them to some archival storage and then delete the originals, the versions are not saved. If you delete the files (since you won't be using them again) the versions are also deleted. Of course, Time Machine will be saving some older versions if you use it.

How can I enable or show the expose on Lion using my magic mouse? I cant do the four finger gestures. Any help?

Exposé is now part of Mission Control. You can access it with a two finger double tap. Application Exposé can be reached with a two finger double tap over the Dock icon of the app you are interested in.

You can also get BetterTouchTool if you want other possibilities

 

[Tootles]

Contextual menu:
The contextual menu function has been changed to the point that, if you're using a laptop such as the 11" MBA (or maybe any of the others too?), it no longer exists as such. The contextual menu was a way to get around the lack a second button on the pointing device. Now at least one extra step is involved to get the contextual menu to come up. If you try to put a second finger down without first lifting the one doing the pointing, it either doesn't work or is awkward and uncomfortable. The way that the contextual menu was done before Lion made a lot more sense. I think it could exist without interfering with the Lion gestures so, I hope they bring it back.

I'm baffled by what you are saying. On both my MacBook and Magic Mouse the context menu is brought up in EXACTLY the same way in Lion as it was in Snow Leopard:

1. Trackpad: Put second finder down and click.
2. Mouse: Right click

It isn't necessary to lift the first finger from the trackpad after positioning.

Oh but but often (more often than not, it seems, for me) it is necessary to lift the first finger after positioning. When the finger doing the pointing is close enough to the top edge of the trackpad, that the second finger falls outside the realm of the sensor (which is still a physical part of the trackpad), no contextual menu comes up. So then I have to point where I want, then lift up my finger without the pointer moving, reposition the finger to the middle of the trackpad, then hold it there while I put the second finger down, then hold them both there while I get my thumb in the proper place. Through all that, my fingers are feeling like they could cramp up. It's nowhere near as smooth or fluid as the one-finger contextual menu was.