First, let me thank my friend Dr. Eduardo for loaning me his zoombox. I brought it home to test it and see how a 234i pj will do.
My theater is a converted bedroom with full light control. The screen is a wall paint in lowe's valspar plank grey flat interior. The best "image" you can attain before the pixellation becomes too unbearable is about 50" 4:3. Obviously, you need a darkened room but even with the theater door open it is still bright enough for viewing. The throw for a 50" is about 6'9" or so.
The screen is 66x86
My ht and the zoombox
One interesting note about the projector is that it handle anamorphic. I set my outboard dvd player (you can only connect externally via composite, hence the "234i" rating) to watch in widescreen mode as well as my Samsung OTA HD receiver and the projector stretched it correctly.
There is no keystoning so the middle of the lens is the middle of the picture. using the stand results in a slight trapezoid look. Not too bad but no keystoning is definitely better.
All images are at 50" 4:3. The images are brighter but not much more than what you see.
Pablo from the Backyardigans (the image is a little brighter than this (but not much)
Mission Impossible 2
Same image with closeup of car (note pixellation)
DVD player pause icon
Overall, it's not a bad projector. The delay time is what you'd expect from a low res lcd which hasbro used, but still okay for video games (I suppose)