I must be missing why this is important, shocking, or otherwise news-worthy. I imagine a lot of companies use Google Apps, regardless of size - it's a reliable

I must be missing why this is important, shocking, or otherwise news-worthy. I imagine a lot of companies use Google Apps, regardless of size - it's a reliable service that requires very little in the way of setup and a lot in the way of functionality. If Twitter offered email, documents, calendars or competitors to any of the other core Google services then I could understand why this might be interesting. IMO this is no more significant than Twitter using Microsoft (or Apple) operating systems.