Tech Play - Twitter

I am glad to know exactly what this is all about, but I have to admit that I really don't care what my friends, or even people I'm fascinated with (eg. Barack Obama), are doing on a moment-by-moment basis. My friends' blogs or Facebook pages are enough for me! The only possible library application I can see for this is for programming - "15 minutes until Storytime starts," "Don't forget the library book discussion starts at 7:30 tonight," etc.