The first question I had for Howard Look at TiVo when I heard about the new HME launch today was "is there some sort of gallery/forum that I can go to find the best apps or share apps I build?" His answer was basically no, but they were hopeful that someone could put something together. I pinged a few friends and eventually George Hotelling, who has been posting here, put something together.
I give you: http://hme.pvrblog.com/
Our goals were to get a place where we could have a categorical list of applications, a way to rate those apps, the ability to add screenshots, and a forum area to discuss each app and topics in general. I encourage any new HME app developers that want others using, rating, and commenting on your work to get the word out by uploading them to our new site.