I guess, seeing this report, you can understand why:
The latest version, ACT! for Palm OS 3.0, is compatible with ACT! by Sage 2008 (10.0) and ACT! by Sage Premium 2008 (10.0). Compatible versions of this product will not be developed for ACT! by Sage 2009 (11.0), ACT! by Sage Premium 2009 (11.0), or for subsequent releases of ACT!. A letter will be sent to all ACT! for Palm OS customers in mid-December to communicate the discontinuation.
Customers who have upgraded or decide to upgrade to ACT! 2009 may access their ACT! data using ACT! Link for Palm OS which is included with their purchase of ACT!. ACT! Link for Palm OS works with built-in applications that run on the Palm OS. Not all features in ACT! for Palm OS are available in ACT! Link for Palm OS.
Support for current versions will expire next November - http://www.act.com/support/obs/
*at least in North America, might be different in other regions
I don't see much of an issue with this ... the Palm OS market has become so small and even most of their devices are based on Windows Mobile now.
With most new users wanting wireless sync, Handheld Contact has become the product for people who want the type of functionality previously in ACT! for Palm OS (and much more).
While HHC isn't on the Palm OS, it is on Windows Mobile and the two big players in the smart phone market - Blackberry and iPhone.
Wed Feb 11th - There will be no more PalmOS devices released by Palm. They're focused on webOS and Windows Mobile.