Recently, we had the opportunity to sit down with three different HD projectors made by Optoma — the HD33, the GT750E, and the Neo-i. While all produced good images (in fact, the HD33 would probably be classified as "great" and the GT750E as "really quite nice"), they are all made to cater to different segments of the projector market. None of them is the single system we would recommend as the be all and end all; each came with its own set of advantages and disadvantages.
First up, the Neo-i. No one would ever suggest this projector could stack up image-wise with the big boys, it isn't meant to. It is meant to be a good, little, portable projector, one with a dock that you can pop an iPod or an iPhone onto and have any movies (or music) you have on the Apple device play out on the projector. The Neo-i comes with built-in eight watt speakers, two HDMI ports, and a cradle for your iPod.
The projector can sit as close to a screen as eight inches and as far away as 188, producing a picture in size anywhere from a mere five inches to a cool 120. It must be noted that the only way to adjust the size of the image is to move the projector closer to or farther from the screen, it cannot be adjusted by changing a projector setting. Additionally, the projector has to be relatively centered height-wise on the screen or you will end up with a trapezoidal image (as one would expect) and there is no keystone correction on the device.
These last items are, essentially, the tradeoffs for what the projector does offer – decent sound, a pretty good image, and a fair price (Amazon currently has it for $279). If these are drawbacks you can live with, you're going to like what you get in exchange. The Neo-i's image may not rival an HD television, but what it does produce looks pretty good.
The DLP projector reproduces images faithfully, with a broad array of colors and good blacks. There is absolutely no noticeable ghosting or trouble with faster moving images. The definition is acceptable and there is a focus knob to fine tune things. The image is not as perfectly crisp as one might like (especially as you increase the distance between projector and screen), but, as stated above, as long you're not expecting HD, you're probably going to be satisfied. We do still recommend watching in dim areas if you're trying to project a large image, but at shorter distance some light is acceptable.