it will be possible to use the same remote with QML aswell as widgets (I'll be working on Harmattan and Symbian versions soon-ish), though in some cases it may make sense to tweak the layout a bit.
Less bloat is better, but since it's important that remotes can be created as easily as possible, convenience is also a factor, so enabling the use of existing LIRC config files is attractive. However, if a Pierogi library was available that already provided configs for the remotes that people want to use, that could be a good alternative.
I'll be implementing the bluetooth support first (I want a BT mouse and keyboard remote ).