Twitter monetary idea #1
Twitter’s starting to really shine as a flexible data backend for a number of so-called barnacle applications. The service gives developers the ability to add tremendously powerful data inputs instantly; it takes care of nearly every possible option - SMS/IM/Email/Web forms - and can be monitored through a powerful API.
If I were twitter I might consider offering ‘pro’ versions of this service; slightly more flexible and customizable plans with the promise of increased uptime or the like.