I'm not sure they are quite as small as the Bushnell but they are alot smaller than before. I knw they will work on AA batteries and now use an SD card instead of the more expensive cf card. They are also supposed to be able to take pics twice as fast as the current model. Trailcampro is supposed to have them available by the middle of this month. Here's a link with all the specs.

http://www.trailcampro.com/reconyxhc500.aspx