Comment on Thunderbird

I started using Thunderbird, and just love it. I added Lightning for my calendaring, with the provider addon so I can sync my calendar to Google Calendar so I can sync it back to iCal and ultimately my iPhone...Works fantastic. Sugarbird is great for integrating with SugarCRM, and with a couple hacks to the iCal plugin I can synchronize Lightning with SugarCRM. A couple more hacks you can find online and TB, I am connected with the mac address book.