I created a thread on libtcod's forums to talk about the 1.5 release.
Feel free to describe what would be your dream library.
http://roguecentral.free.fr/smf/index.php?topic=216.0
This thread is rather about wide architectural changes, general issues than specific bugs/feature requests, but anyway feel free to speak about what bothers you in the current version, check the planed changes for 1.5 and let me know if some are too radical.
Thanks in advance for your feedback.