I tried out rev 175 and the installer version from the SF page. Overall it's a really nice application and might as well take over IrrEdit but only if it's kept updated constantly. I mean, irrEdit has had several bugs for ages and there seems to be no sign of updates.
Anyway here's my suggestions and bugs:
* The open button in the File menu is not working? Save does.
* I cant delete any node from the scene graph window by selecting the node I want and pressing delete. I have to select the node it the main window which is kind of impossible for skyboxes and such. Few minutes later .. oh right. I have to double click.
* Adding any mesh scene node results in an empty scene node, I cant see any mesh. Not even the dwarf one.
* Improve material editor. Move the copy/paste material from Edit menu to Material editor window. It doesn't make sense to have material copying with the the shortcut key ctrl-c. That should clone the selected node instead. Also could you add a checkbox to Material editor window that would allow any changes to be made to ALL materials at once, like setting the fog parameter. Some of meshes can have over 100 materials so it's kind of annoying. And it's the one feature I've been missing from irrEdit, greatly. Of course only material settings would be done like that, not textures and clamping and like that.
* When a node is selected, the 3 movement arrows tend to get lost in the background when the node is far away. The arrow should always be drawn in a constant size no matter the distance.
* Ditch the installer. Unless you're making changes to system registry, installers are annoying. Currently it's just a fancy way of copying files. Or if you keep the installer, at least have it create an entry in the start menu or a desktop shortcut.
* Could you make it so, that when I write a single number in the scale textbox, like 0.5, it would set all 3 values to that. Again, a feature I've missed from irrEdit. Also, I cant seem to move the cursor with arrow keys in the textboxes.
My two cents. Or three. Keep up keeping up the fantastic work you've been doing.