Caroline Middlebrook has produced "The Big Juicy Twitter Guide" on her blog that answers a number of questions, some of which include:
1. How does Twitter work as a mobile communication tool?
2. Is socializing with Twitter business or personal?
3. How can Twitter be used for marketing?
4. What are the platform-specific Twitter tools?
5. How can Twitter promotion go viral?
Now that Google have unveiled their groundbreaking mobile strategy - Android - allowing operators, handset makers and application developers to innovate together, how will Twitter evolve?