Last year I wrote about some changes I would like to see happening in QtNetworkManager. One of the most important ones (Move the DBus parsing code to QtNetworkManager) is happening right now (just grab the code from settings branch from libnm-qt repository). Thanks Jan Grulich from RedHat for working on this issue.
Well, there are still other things to work on QtNetworkManager, just take a pick :-) If you are a student you can also take a look at my Google Summer of Code idea for improving the interface details panel in Plasma NM. Just write a proposal based on the idea and I will take a look it.
Update: I have just added a second idea for GSoC. It is about implementing SMS send/receive feature in Plasma NM.