In a new post on her blog today, Elizabeth Smith talks about her "PECL Windows nut project" of wanting to get every single PECL extension she can get her hands on to compile under Windows.
Now there will be some that are just frankly impossible (but there are some extensions that are impossible on *nix as well - you're not going to see me messing with xmms) What does this mean? Playing with lots of open source libraries, fixing simple errors, creating config.w32 files for extensions. Basically just looking at what is broken and fixing it.
She's already started on the project, fixing several of the base extensions and moving on to try to correct one to five extensions a day. These changes are getting committed into CVS so anyone can get at them and try them out for themselves. She's also trying to get them over into the PECL4WIN packages to make things more "official".