"You can still use [Twitter] to grow a business." ~ @joshelman
Lucas Meadows stashed this in Twitter
They don't want you to display tweets in a "non-Twittery" way and they don't want you replicating the Twitter experience too closely (i.e., displaying tweets in a Twittery way).
Also, the already severely rate-limited API is going to become even stricter on its limits, and will stop supporting unauthenticated API calls altogether.
What kind of stupid ass would try to start a company that was based primarily on the Twitter API? I'm tempted to stop using the API altogether and rely on our bookmarklet to rip whatever data people want to save from Twitter.