When I open the solution explorer context menu on a node that is about halfway on the screen and this menu can't be shown above the mouse curson and can't be shown below the mouse cursor the menu is shown as scrolling above the mouse cursor.
In previous versions (and betas if I remember correctly) and normal Windows menus are shown alongside the mouse position: as large as possible to allow more items on screen at once.
I would like you to reconsider fixing this issue for the RTM for VS2010.
This is a regression since the January LCTP, so there were changes this late in the release cycle for this point.
This is a very serious usability issue for Visual Studio extensibility as many extensions make menus larger than the original size. And the scrolling (with half menu items) using only about 50% of the screen height makes no sense.