I'm interested if I still should use WTL to write Windows applications? I really like how it's written but does anyone know if it is still maintained? (Maybe there is a port that someone maintains unofficially?)
If WTL is not recommended to write new Windows applications, what new frameworks are there that I could look up and use?
The WTL was opensourced by Microsoft in 2004. Since then it's been updated by the community. The lastest release was in March of 2012. You can check out the latest, see what they are working on, etc from sourceforge.
I don't see why you shouldn't use this to build your app.