Did you get a chance to upload the updates yet?
Just uploaded the Platform Builder demo:
View it in full screen for best effect.
Added over 200 objects and has special weather effects you can add to your games and background music and different background scenes to use.
Cursor snaps to grid so aligning platforms is a snap.
Still have some enemies and special moving objects to add but this is a good demo of where I am headed.
Try out the weather and night time effects and let me know what you think and suggestions appreciated.
Sorry about the arrow keys. I will add other controls later but you can still play with the editor.