One word: awesome. Thanks to Oli Zerdos for picking up on this.

I had two full Gmail accounts and I was always going back from my Google Apps account into gmail to search old emails. It'll be brilliant to have them all in one mailbox now.

• Google Apps Toolbar
• GMail's missed potential
• Goodbye Outlook: hello Google Calendar
• Death to Outlook and Exchange: two-way, over the air Google Calendar to Blackberry sync!
• Is Google getting us addicted?