Projectorcentral had a second look at Optoma's H27 projector. Here's a short snippet from their test report:

On June 16 we posted a shoot-out review of several entry level 480p resolution projectors on the market. Most of them had been on the market for several months, but at the last minute we included the Optoma H27, since one of the first units had just become available to us. We evaluated it and reported what we found, which was that it was not performing up to the standards of the others in the group..



Link: Projectorcentral