I must sign up for 10 new accounts online each day... 8 of those 10 are likely some sort of email list for an upcoming beta. I find them on http://betali.st or on HN or just through various tweets. The thing that pisses me off, is I usually look at them and say, "oh cool, someone's finally making an app that does X" or "sweet, I've been wanting to make this app, but I'm glad someone else is"
And then I wait for the beta invite and it never comes. Then I stumble upon the url for the site a bit later and realize they shut it down and it never actually was developed.
Now, I can completely understand how developers can get wide-eyed and excited about an idea and immediately start marketing it as the next big thing, but then that excitement wears off and they drop it.
I guess my biggest question I'd like to pose to the developer community is:
Is it worth the having a notification sign-up for an app you have no intention of having running within the next 6-12 months, or should we focus on having these sign-ups when the finished product is weeks away?