I find Modeling in Blender 2.5x less intuitive than Blender 2.49,
only because of one minor changes in the way the polygons are extruded.
In Blender 2.49 you can get an extrusion that is always perpendicular to the view.(a small extrusion follow by a control+Mouse Click)
When you carry on Control+Mouse Click the face of the polygone are always perpendiculaire to the screen even if you change the view.
I have been unable to reproduce that in Blender 2.5xx.
It is very frustated.
Will be grateful for any help on this matter.