Unlimited Free Trials are the New MMO Hotness (Age of Conan, Champions Online, Warhammer Online, and more!)

Apparently I missed the memo.  Free trials with unlimited playtime, but level and gameplay restrictions, are popping up everywhere.

Age of Conan - LINK
Details:  Unlimited playtime. Players can play up to level 20, but only if registered for the trial before Jan 1st, 2010.  Trading and player chat limited.

Champions Online - LINK  
Details: Unlimited playtime. New players can create an account and play the beginning zone of Champions Online for as long as they want.

Warhammer Online - LINK
Details: Unlimited playtime. Players are restricted to the Tier 1 Empire vs Chaos zones, but can access all scenarios.  Trading and player chat limited.

Alganon - LINK
Details: Unlimited playtime. No leveling or zone restrictions, but trial characters are deleted after 30 days and must be re-rolled.  Limited skill progression and limited chat options.