I added my laptop (an old Asus U50A, works great) to help get the ball rolling.
I do think the form could use some more details - at least around Sound, Video and Wifi. If I'm looking to buy a laptop that supports Haiku, I would want to quickly be able to identify the ones that support those.
Ultimately I think the best solution would be a website that is easy for users to add info to (like your Google form) but captures more data (like the BeSly) and has some basic search or filter criteria.
I have been planning on coding a proof-of-concept website for a while now, but haven't gotten around to it / don't know if anyone else would be interested.