Our office is transitioning from outlook to thunderbird. We currently use !Act 2008 and were thinking of upgrading but because of the lack of support for anything other than microsoft ,we decided to look elsewhere for a CRM. Having written code in a previous life, there isn't a whole lot of talent required to invoke a mail client and populate the address, subject, and body fields. It's a shame that the project manager can't see the benefits of such a integration.
Maybe if you guys came out with an !Act lite, (there aren't too many people that actually use all the bells and whistles of the standard version) you could regain some sales instead of loosing longtime customers.