I would like to see a little emphasis on fixing some most wanted/popular packages from Extras.
We have a host of broken packages in our repos that possibly only need a bit of TLC.
Most people would prefer to go there own direction when designing an application, I can fully understand that.

But take into consideration that someone may have thought about your idea in Maemo's past leaving a half working package in the repos that just needs a little love.

Take a look through the existing packages, see if you can contact the maintainer (e-mail etc), ask if you could be a maintainer. If you get no answer techstaff and CC maybe able to do that provided your package is QA'ed first.

Also have a look at the wiki there is a raft of information there for developers.