There is a serious problem with both of these programs when it comes to deletion.

I inadvertently installed a few programs that should not have been, so with Yumex I selected them for deletion.

I received the confirmation, and then yum went through the complete tree, deleting every file in the branchs.  The end result that yumex yum, rpm and many many many more files were expunged.

I looked at the situation, since F10beta is not F10, and noone has reported this problem, this is a real issue that needs some attention.

In a delete mode, a where-used should be done to limit deletion to independent dependencies.