in reply to This year I plan to learn about:
Well I voted perl6 but I actually meant 6 on 5, pugs, some haskell, and definitely some parrot. And many more things...
I want to have a good look at Moose. I also want to play more with threads which I have always neglected. POE is also on my list.
Finally I want to have a good look at Native call interface (called FFI in the scheme world) and find out why some "languages claim" it's easy to do
(some schemes and the newer factor do that...).
I hope that I will be able to code more Perl in 2007 than 2006 ;), especially my favourites: fast top-down parsing and fast tree manipulation for symbolic manipulation (in C with hooks for perl). One thing I am planning to look at real soon is how to hook a trimmed down version of the perl regex engine into perl itself via Yves's latest work (the goal is to be able to save state for a partial match at the end of a buffer).