I haven't abandoned it. I have been spending time making sure the basics of the contacts application are right (uninteresting backend stuff like the storage and the vCard parser), but mostly life has interfered (I'm not a 19 year old university student with nothing else to do).

You can expect that when I'm adding a new significant application there will be a long time between updates.

I do plan to make a minor release this weekend to address a couple of things raised here and one other aspect of the user interface I have found inconvenient, but the next major update is still a while off.