i think the purpose of these types of "launch pages" is to gauge interest... to see if there's really enough interest to spend the time and effort creating the

i think the purpose of these types of "launch pages" is to gauge interest... to see if there's really enough interest to spend the time and effort creating the working system. it's also a great way to create a list of potential beta users. when something is ready, the person running the site can hand out beta codes to people that have signed up, and get real feedback at that point