This is an amalgamation of lots of different Twitter apps. More importantly, it's an amalgamation of this guy's favourite Twitter apps. It's his killer app. However, many other people will want a different set of apps in their killer app.

What this guy is really saying is, "Build me a custom version of this thing." Sounds like enterprise software.

Some progress may me made by rolling up some of the popular/complementary apps and, thus, satisfy a large enough group of users.